Answer: D
Explanation:
An assembly line is where many people work together to make products. Like for a wooden toy train, one group carves the wood, another group glues the wood together, etc.
Answer: More Security.
Explanation: You're Welcome.
Arman takes a picture with his smartphone which he subsequently posts online. Beatrice finds the picture online and posts a copy of it on her website with an attached Creative Commons license. Which of the following best describes who owns the photo? A. Beatrice owns the photo because only holders of a Creative Commons license can own works online. B. Arman owns the photo because he was the original creator and did not license the work. C. Arman owns the photo because it was granted a Creative Commons license by another person online. D. Both own the photo because creating a copy makes it her intellectual property.
Answer:C
Explanation:
Blackbaud is a company that supplies services and software designed for nonprofit organizations. Which type of e-commerce website will Blackbaud have?
Explanation:
Blackbaud's software products are specially designed to support the unique needs of nonprofit and social good organizations.
Explore our software solutions that can help you advance your organization's mission.
What is a topographical map? Select all that apply:
-shows roads
-shows the types of soil
-shows altitude
-shows the contours and physical features of an area
-shows population density
Answer:
1.Shows roads
2.shows the contours and physical features of an area
Explanation:
Answer:
A.shows roads
D.shows the contours and physical features of an area
Explanation:
Which of the following statements about Scheme is correct?
A. Scheme is not fully curried and it supports delayed evaluations.B. Scheme is a fully curried language that does not do delayed evaluation.C. Scheme is a fully curried and lazy language.D. Scheme does not support higher-order functions.
Answer:
B. Scheme is a fully curried language that does not do delayed evaluation.
Explanation:
Scheme is a functional programming language that accepts first or higher-order functions and is a family of the LISP programming language. The syntax in scheme supports both curring and uncurring.
It also supports delayed evaluation and lazy evaluation of its coding statements
A WHILE loop can be constructed with a CMP instruction at the bottom of the loop, followed by a conditional jump instruction.
a) true
b) false
Answer:
false
Explanation:
If the condition is false at the start, the contents of the loop should never be executed. If the CMP is at the end, you cannot prevent the code to run at least once. So this approach will work for a DO { ... } WHILE() loop, but not for a regular WHILE() { ... }
_____ is the operation of setting a variable to a value.
Answer:
Assignment is the operation of a variable to a value
What are the drawbacks of electronic and web-based output?
13 POINTS! Which option is used to ensure the integrity and authenticity of a Word document but requires additional services to be available on the internal network? A. digital encryption B. digital signature C. password protection D. protected view.
A. digital encryption
Answer:
the answer is a for all u edg users
Explanation:
A loss of __________ is the unauthorized disclosure of information.
a) authenticity
b) integrity
c) confidentiality
d) reliability
Answer:
I believe its confidentiality
Explanation:
confidentiality means the state of being kept secret or private
A loss of confidentiality is the unauthorized disclosure of information. The correct option is c).
What is confidentiality?Confidentiality is a set of rules or a promise that limits access to specific information. There aren't enough boundaries in confidential information. One shouldn't give your information to random people, but you also shouldn't give it to people close to you because not everyone is trustworthy.
One should only give out one's information when it is absolutely necessary, which is if you are. Unless there is a compelling reason not to, request consent to share information.
Unless it is going to hurt you or another person, a counselor will keep all of the information you give them confidential. When a detective keeps all crime-related clues and information confidential and hidden from civilians.
Therefore, the correct option is c) confidentiality.
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Which does a traditional camera need in order to capture images?
A. secure digital (SD) card B. printer C. scanner D. film
Answer:
I think secure digital is needed
Answer:
Film
Explanation:
I chose Film and got it correct
Consider three different processors P1, P2, and P3 executing the same instruction set. P1 has a 3GHz clock rate and a CPI of 1.5. P2 has a 2.5GHz clock rate and a CPI of 1.0. P3 has a 4.0GHz clock rate and has a CPI of 2.2. a. Which processor has the highest performance expressed in instructions per second? b. If the processors each execute a program in 10 seconds, find the number of cycles and the number of instructions. c. We are trying to reduce the execution time by 30%, but this leads to an increase of 20% in the CPI. What clock rate should we have to get this time reduction?
Answer:
See explanation
Explanation:
Given:
Processors:
P1
P2
P3
Clock Rate of Processors:
Clock rate of P1 = 3 GHz
Clock rate of P2 = 2.5 GHz
Clock rate of P3 = 4.0 GHz
CPI of Processors:
Cycles per instruction = CPI of P1 = 1.5
Cycles per instruction = CPI of P2 = 1.0
Cycles per instruction = CPI of P3 = 2.2
To find:
a) Which processor has the highest performance expressed in instructions per second
Solution:
Performance = clock rate / CPI
The performance of processor depends on instructions count and CPU time.
As we know that
CPU time = Instructions * Cycles Per Instruction / clock rate
CPU time = Instructions * CPI / clock rate
Instructions per second = Instruction count / CPU time
As:
CPU time = Instructions * CPI/ clock rate
Instructions/CPU time = clock rate/CPI
Instructions per second = clock rate / CPI
IPS = clock rate/ CPI
Hence
Performance = Clock rate / CPI = clock rate/ CPI
Compute Performance of P1:
Performance for P1 = IPS of P1 = clock rate of P1 / CPI of P1 = 3 GHz / 1.5 = 2
As we know that 1 GHz = 10⁹ Hz. So:
Performance of P1 expressed in instructions per second is 2 x 10⁹
Compute Performance of P2:
Performance for P2 = IPS of P2= clock rate of P2 / CPI of P2 = 2.5 GHz / 1.0 = 2 .5
As we know that 1 GHz = 10⁹ Hz. So:
Performance of P1 expressed in instructions per second is 2.5 x 10⁹
Compute Performance of P3:
Performance for P3 = IPS of P3= clock rate of P3 / CPI of P3 = 4.0 GHz / 2.2 = 1.82
As we know that 1 GHz = 10⁹ Hz. So:
Performance of P1 expressed in instructions per second is 1.82 x 10⁹
From the above computed performances of each processor it can be seen that Processor 2 (P2) has the highest performance expressed in instructions per second i.e. 2.5 x 10⁹
b) find the number of cycles and the number of instructions.
Given:
processors each execute a program in 10 seconds, So,
CPU time = 10 sec
Solution:
Compute number of cycles:
As we know that:
CPU time = cycles count / clock rate = clock cycles/clock rate
So
clock cycles = CPU time x clock rate
Compute number of cycles of P1:
clock cycles = 10 x 3 GHz
= 30
As we know that 1 GHz = 10⁹ Hz. So:
clock cycles of P1 = 3 x 10¹⁰
Compute number of cycles of P2:
clock cycles = 10 x 2.5 GHz
= 25
As we know that 1 GHz = 10⁹ Hz. So:
clock cycles of P2 = 2.5 x 10¹⁰
Compute number of cycles of P3:
clock cycles = 10 x 4.0 GHz
= 40
As we know that 1 GHz = 10⁹ Hz. So:
clock cycles of P3 = 4 x 10¹⁰
Now as we know that:
Instructions per second = Instruction count / CPU time
IPS = IC + CPU time
So to find number of instructions:
instruction count = Instructions per second x CPU time
Compute number of instructions of P1:
instructions of P1 = Instructions per second of P1 x CPU time
= 2 x 10⁹ x 10
= 2 x 10¹⁰
Compute number of instructions of P2:
instructions of P2 = Instructions per second of P2 x CPU time
= 2.5 x 10⁹ x 10
= 2.5 x 10¹⁰
Compute number of instructions of P3:
instructions of P3 = Instructions per second of P3 x CPU time
= 1.82 x 10⁹ x 10
= 1.82 x 10¹⁰
c) What clock rate should we have to reduce the execution time by 30%
As we know
CPU time = Execution time = instructions x CPI / clock rate
We have to find new clock rate to reduce execution time by 30%
This means we have to find:
New Execution Time = 70% of Old Execution Time
According to formula of Execution time:
instructions(new) x CPI(new) / clock rate(new) = 0.7 [instructions(old) x CPI(old) / clock rate(old)]
As the instructions(new) = instructions(old)
So,
CPI(new) / clock rate(new) = 0.7 [CPI(old) / clock rate(old)]
When trying to reduce the execution time by 30%, this leads to an increase of 20% in the CPI.
CPI(new) = 1.2 CPI(old)
New CPI of P1:
CPI(new P1) = 1.2 CPI(old P1)
= 1.2 x 1.5
CPI(new P1) = 1.8
New CPI of P2:
CPI(new P2) = 1.2 CPI(old P2)
= 1.2 x 1.0
CPI(new P2) = 1.2
New CPI of P3:
CPI(new P3) = 1.2 CPI(old P3)
= 1.2 x 2.2
CPI(new P3) = 2.6
1.2 / clock rate (new) = 0.7 / clock rate(old)
So new clock rate is computed as:
clock rate (new) = (1.2 / 0.7 ) x clock rate(old)
clock rate (new) = 1.71 x clock rate(old)
clock rate (new) = 1.71 x clock rate(old)
Hence the clock rate should be increased by 71% approx.
Now new clock rate for each processor is:
clock rate (new) for P1 = 3 GHz x 1.71 = 5.13 GHz
clock rate (new) for P2 = 2.5 GHz x 1.71 = 4.27 GHz
clock rate (new) for P3 = 4.0 GHz x 1.71 = 6.84 GHz
In this exercise we have to use CPU and processor knowledge, so we can say that:
A)Processador 2
B) Processador 3
C) Processador 3
From the information given in the text we have:
Clock rate of P1 = 3 GHz Clock rate of P2 = 2.5 GHz Clock rate of P3 = 4.0 GHz CPI of P1 = 1.5 CPI of P2 = 1.0 CPI of P3 = 2.2
a) With the formula bellow, we find:
[tex]Performance = clock \ rate / CPI[/tex]
The performance of processor depends on instructions count and CPU time.
Compute Performance of P1:
[tex]P= 3 GHz / 1.5 = 2*10^9[/tex]
Compute Performance of P2:
[tex]P = 2.5 GHz / 1.0 = 2 .5*10^9[/tex]
Compute Performance of P3:
[tex]P = 4.0 GHz / 2.2 = 1.82 *10^9[/tex]
b) Processors each execute a program in 10 seconds, So:
P1:
[tex]10 * 3 GHz = 30*10^{10}[/tex]
P2:
[tex]10 * 2.5 GHz= 25*10^{10[/tex]
P3:
[tex]10 * 4.0 GHz = 40*10^{10[/tex]
c) So for reduce we have:
New CPI of P1:[tex]CPI = 1.2 CPI = 1.2 * 1.5CPI = 1.8[/tex]
New CPI of P2:
[tex]CPI= 1.2 CPI = 1.2 * 1.0\\CPI= 1.2[/tex]
New CPI of P3:
[tex]CPI= 1.2 CPI = 1.2 *2.2\\CPI = 2.6[/tex]
Now new clock rate for each processor is:
[tex]clock rate (new) for P1 = 3 GHz x 1.71 = 5.13 GHz\\clock rate (new) for P2 = 2.5 GHz x 1.71 = 4.27 GHz\\clock rate (new) for P3 = 4.0 GHz x 1.71 = 6.84 GHz[/tex]
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Write a script which: Uses the input function to get any number and store it in a variable named my_number Create a new variable named calculation which equals my_number plus 9 Multiply calculation by 2 Subtract 4 from calculation Divide calculation by 2 Subtract my_number from calculation Print calculation
# Using the input function
# Prompt the user to input some number
# Convert the input to a float - this will cater for both floating
# numbers and integers
# Store the result in a variable called my_number
my_number = float(input('Please enter some number '))
#Create a variable named calculation which equals my_number plus 9
calculation = my_number + 9
#Multiply calculation by 2
calculation *= 2
#Subtract 4 from calculation
calculation -= 4
#Divide calculation by 2
calculation /= 2
#Subtract my_number from calculation
calculation -= my_number
#Print calculation
print('calculation = ' + str(calculation))
Sample Output>> Please enter some number 8
calculation = 7.0
Explanation:The above program has been written in Python and it contains comments explaining each line of the code. Please go through the comments. A sample output has also been provided.
How is Moore’s Law relevant to programmers?
Answer:
Moore's law is currently dead
Explanation:
But it was relevant to give a metric of the computational power that will exist, allowing programmers to make software that lasts longer, Moore's law said that a chip's transistors would be doubled every 18 months for the same price
What is hardware?
O All elements of a computer
O The parts of a computer that you can touch
O Wooden planks sold in a hardware store
The parts of software that you can't see
Consider the following algorithm: ```c++ Algorithm Mystery(n) { // Input:A nonnegative integer n S = 0; for i = 1 to n do { S = S + i * i; } return S } ``` 1. What does this algorithm compute? 2. What is its basic operation? 3. How many times is the basic operation executed? 4. What is the efficiency class of this algorithm? 5. Suggest an improvement, or a better algorithm altogether, and indicate its efficiency class. If you cannot do it, try to prove that, in fact, it cannot be done.
Answer:
See explanation
Explanation:
First let us find what this algorithm compute:
Algorithm Mystery(n) {
S = 0;
for i = 1 to n do
{ S = S + i * i; }
return S }
1)
Let suppose n = 3
S = 0
The algorithm has a for loop that has a loop variable i initialized to 1
At first iteration:
i = 1
S = S + i * i;
= 0 + 1 * 1
S = 1
At second iteration:
i = 2
S = 1
S = S + 2 * 2;
= 1 + 2 * 2
= 1 + 4
S = 5
At third iteration:
i = 3
S = 5
S = S + 3 * 3;
= 5 + 3 * 3
= 5 + 9
S = 14
Now the loop breaks at i=4 because loop iterates up to n and n =3
So from above example it is clear that the algorithm computes the sum of squares of numbers from 1 to n. Or you can say it compute the sum of first n squares. Let us represent this statement in mathematical form:
∑[tex]\left \ {{n} \atop {i=1}} \right.[/tex] i²
2)
From above example we can see that the basic operation is multiplication. At every iteration loop variable i is multiplied by itself from 1 to n or till n times. However we can also say that addition is the basic operation because at each iteration the value of S is added to the square of i. So it takes the same amount of time.
3)
In the for loop, the basic operation executes once. We can say that at each iteration of the loop, multiplication is performed once. Suppose A(n) represents the number of times basic operation executes then,
A(n) = ∑[tex]\left \ {{n} \atop {i=1}} \right.[/tex] 1 = n
4)
Since for loop executes once for each of the numbers from 1 to n, so this shows that for loop executes for n times. The basic operation in best, worst or average case runs n times. Hence the running time of Θ(n) . We can say that A(n) = n ∈ Θ(n)
If b is the number of bits needed to represent n then
b = log₂n + 1
b = log₂n
So
n ≈ [tex]2^{b}[/tex]
A(n) ≈ [tex]2^{b}[/tex] ≈ Θ( [tex]2^{b}[/tex] )
5)
One solution is to calculate sum of squares without using Θ(n) algorithm. So the efficient algorithm that takes less time than the previous algorithm is:
Algorithm Mystery(n) {
S = 0;
S = (n * ( n + 1 ) (2n + 1) ) / 6 ;
return S}
Now the sum can be calculated in Θ(1) times. This is because regardless of the size and number of operands/operations, the time of arithmetic operation stays the same. Now lets find out how this algorithm works for
n = 3
S = (n * ( n + 1 ) (2n + 1) ) / 6 ;
= (3 * ( 3 + 1 ) * (2(3) + 1) ) / 6
= (3 * (4) * (6+1)) / 6
= (3 * (4) * (7)) / 6
= (3 * 4 * 7) / 6
= 84 / 6
S = 14
What is a half note + a 8th note in band? plz helppp
Answer:
A half note is a note that lasts two quarter notes. For most songs, it does last half a measure, but this is not always the case. An 8th note is a note that lasts half of a quarter note, and is usually (but again not always) an 8th of a measure. A quarter note is the most common type of note in a measure.
If you want to find out what exactly that stuff means, well, you're out of luck here, but it's probably better to just look that up anyways.
Scenario2: Now suppose the LAN must support both voice and data and you must choose one of these multiple access strategies in order to support both applications on the same network, with the understanding that voice calls are more important than data. Which would you choose and why? How would voice and data be sent in this scenario? That is, which access protocol would you use, or adapt/modify, and why?
Answer:
The RTP (real time protocol) which uses the UDP ( user datagram protocol) and Real-time control protocol.
Explanation:
The RTP of a voice over IP protocol (VoIP) which is used to prioritise the transfer of video and audio data over text data. It is used for video conferencing and telephony services in an enterprise.
It uses the user-datagram protocol to transfer or access videos and audio data for its real time effect and the real-time control protocol for quality of service analysis and maintenance.
______ is used to ensure that data is organized most efficiently in a database. A) Consistency checking. B) Validation C) Normalization D) Range checking
Answer:
C) Normalization
Explanation:
Normalization is an approach that is to be done in a systematic manner in order to remove the data duplicity and there are non-desirable attributes such as insert, update, delete, etc. In this the process should be followed in multi step that contains the data in a tabular form so that it could eliminate the repetition of data to maintain the efficiency of the data
Therefore according to the given situation, the option C is correct
The process of ensuring that data values are ordered such that the values in the columns confirms to a certain range and expunged duplicate values is called Normalization.
Data Normalization ensures that the data values are efficiently arranged and ordered, while also getting them ready for analytical purpose. A normalized data will usually be rid of duplicates and the weight of the values in the columns would be even.Hence, the process is known as Normalization.
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Why was PC-A unable to access R1 via ssh?
Answer:
It could be that an ssh virtual terminal has not been configured for the port connected to PC-A
Explanation:
The computer network is an interconnection and intercommunication of computer devices to share resources. Intermediate devices like the Router and Switches are used to create physical and virtual connections between networks and nodes.
virtual connections like the default Telnet and the and more secure SSH are used to remotely communicate with intermediate devices for management purposes. For example, to use the ssh, the line vty and the specified virtual port range must be configured with a username, a password, an encryption key and other ssh features before a connection can be made.
Explain the difference between an attribute and a value set.
The difference between an attribute and a value set is:
An attribute holds values, while a value set are those things which are contained in a classIn programming, there are some terms that are useful for a person that wants to write a code that works.
Some of these terms include:
AttributeValueClassFunctionMethod, etcAs a result of this, an attribute is the name that is given to the property of a class. On the other hand, a value set are those things that are used to represent an object in a given class.
For example, an attribute can have the name "Apples" and can hold the value of "abc" while the value set are those things that can be attributed to a class.
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Write a program that gets five integer test scores from the user, calculates their average, and prints it on the screen. Test your program with the following data: Run 1: 40, 80, 97, 32, 87 Run 2: 60, 90, 100, 99, 95 Run your program and copy and paste the output to a file. Create a folder named, fullname_program2. Copy your source code and the output file to the folder. Zip the folder and upload it to Blackboard.
Answer:
total = 0
for i in range(5):
score = int(input("Enter a score: "))
total += score
average = total / 5
print("The average is " + str(average))
Explanation:
*The code is in Python.
Initialize the total as 0
Create a for loop that iterates five times. Inside the loop, ask the user to enter a score. Add the score to the total (cumulative sum)
After the loop, calculate the average, divide the total by 5
Print the average
What are the examples of shareware?
An example of shareware a compression program like Stuffit for Macs or Windows. An example of shareware is a budgeting software program that only allows you to use three categories instead of having the ability to create a full budget
a range of cells from the fifth row in column A to the twelfth row in column G is written as
Answer:
A5:G12
Hope it helps yuh
What is the length of the following array: byte[] data = { 12, 34, 9, 0, -62, 88 };a. 1b. 5c. 6d. 12
Answer:
C: 6
Explanation:
The values are separated by ` ,` with this it is enough to count all the numbers that are separated by ` , ` making it have 6 elements
Following are the program to calculate the length of the array:
Program Explanation:
Defining a header file.Defining the main method.Defining an integer type array "data" that holds a given value.In the next step, a print method is declared that uses the sizeof method that calculates the length of the array.OR
In the given array all the element is separated by the "," symbol, and when the user counts the array value that is equal to 6.
Program:
#include <iostream>//header file
using namespace std;
int main()//main method
{
int data[] = { 12, 34, 9, 0, -62, 88 };//defining an integer array that hold given value
cout<<sizeof(data)/sizeof(data[0])<<endl;//using print method calculate and print the size of array
return 0;
}
Output:
Please find the attached file.
Therefore, the final answer is "Option c".
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A dual-core system requires each core has its own cache memory.
a. true
b. false
Answer:
true
Explanation:
Help me with A,b and c
Answer:
The Following are the answer to the given statement:
Explanation:
Given value:
[tex]a) \ Y= \bar{A}BC+\bar{B\bar{C}} +BC \\\\b) \ Y= \bar{(A+B+C)}D+AD+B \\\\c) \ Y= ABCD+\bar{A} B \bar{C} D + \bar (\bar{B} + D) \ \ E[/tex]
In latex code, in typing there is some error so, please find the question.
Solve point a:
[tex]a) \ Y= \bar{A}BC+\bar{B\bar{C}} +BC \\\\[/tex]
[tex]= (\bar{A} + 1 ) BC+\bar{B\bar{C}} \\\\= (\bar{B} + C ) +BC\\\\= \bar{B} + C +BC\\\\= \bar{B} + C(B+1) \\\\= \bar{B} + C \\\\[/tex]
Solve point b:
[tex]b) \ Y= \bar{(A+B+C)}D+AD+B \\\\[/tex]
[tex]Y= \bar{A}+\bar{B}+\bar{C}D+AD+B \\\\[/tex]
[tex]= \bar{C}D+AD+B \\\\[/tex]
Solve point c:
[tex]c) \ Y= ABCD+\bar{A} B \bar{C} D + \bar (\bar{B} + D) \ \ E[/tex]
[tex]=ABCD+\bar{A}B\bar{C}D+ B\bar{D}E\\\\=(AC+\bar{A}\bar{C} )BD+ B\bar{D}E\\\\=(A \circ C)BD+ B\bar{D}E\\\\[/tex]
please find the circuits attachment for the above point.
Write a program that prompts the user to enter positive integers (as many as the user enters) from standard input and prints out the maximum and minimum values.Here is an example of how your program should behave.Enter a positive integer: 2 Enter a positive integer: 9 Enter a positive integer: 3 Enter a positive integer:-1 The maximum integer is 9 and minimum is 2. Note: • Zero: 'O' is not a positive integer. • You must include code to deal with any exceptions that may arise in your program. • Insert 'import' statement(s) at the beginning • Copy the entire class, including the public static main method, 1 import java.util.*; 2 public class Ex0603 { 3 public static void main(String[] args) { 4 Scanner in = new Scanner(System.in); 5Write a program that prompts the user to enter an integer N, then reads N double values, and prints their mean (average value) and sample standard deviation (square root of the sum of the squares of their differences from the average, divided by N-1). Enter an integer: 5 Enter a number: 1 Enter a number: 2 Enter a number: 3 Enter a number: 4 Enter a number: 5 Average value is: 3.00 and the standard deviation is: 1.58 Note: • You must include code to deal with any exceptions that may arise in your program • Write the entire program in the answer box below. For example: Input Result 5 Enter an integer: Enter a number: Enter a number: Enter a number: Enter a number: Enter a number: Average value is: 3.00 and the standard d eviation is: 1.58 123452 Enter an integer: Enter a number: Enter a number: Invalid input!1b
Answer:
Here is the JAVA program that prompts the user to enter positive integers from standard input and prints out the maximum and minimum values:
import java.util.*;
public class Ex0603 {
public static void main(String[] args) { //start of main function
Scanner in = new Scanner(System.in); //creates Scanner class object to take input from user
int minimum = 0; //stores the minimum of the integers
int maximum = 0; //stores the minimum of the integers
int num; //stores the positive integer values
System.out.println("enter a positive integer: ");//prompts user to enter a positive integer
num = in.nextInt();//scans and reads the input integer value from user
minimum = num; //assigns value of num to minimum
while(true) {//while loop keeps prompting user to enter a positive integer
System.out.println("enter a positive integer: ");//prompts user to enter a positive integer
num = in.nextInt();//scans and reads the input integer value from user
if(num <=0)//if the user inputs a negative integer or 0
break; //breaks the loop
if (num > maximum) {//if the value of positive integer is greater than the maximum of value
maximum = num; } //assigns that maximum value of num to maximum variable
if (num < minimum) {//if the value of positive integer is less than the minimum of value
minimum = num; //assigns that minimum value of num to minimum } }
System.out.println("The maximum integer is : " + maximum); //displays the maximum of the positive integers
System.out.println("The minimum integer is : " + minimum); }} //displays the minimum of the positive integers
Explanation:
Here is the JAVA program that that prompts the user to enter an integer N, then reads N double values, and prints their mean (average value) and sample standard deviation:
import java.util.*;
public class Ex0603 {
public static void main(String[] args) { //start of main function
Scanner in = new Scanner(System.in); //creates Scanner class object to take input from user
double integer= 0; //to store the number of input values
double sum = 0; //to store the sum of input numbers
double mean = 0; //to store the average of numbers
double sd = 0; //to store the standard deviation result
double variance = 0; //to store the variance result
double sumSquare = 0; //to store the sum of (num-mean)^2
int n = 0; //to store the sample size N
System.out.println("Enter an integer: "); //prompts user to enter an integer that is how many elements user wants to input
integer = in.nextInt(); //reads the value of integer from user
double size=integer; // declares a double type variable and assigns value of int type variable integer to this double type variable size
int i=0; //used to point each element of the num array
double num[] = new double[(int)size]; //declares an array to hold the numbers input by user
while(integer>0){ //loop executes until value of integer is greater than 0
System.out.println("Enter a number: "); // prompts to enter a number
num[i] = in.nextDouble(); //reads double values
sum += num[i]; //adds the values stored in num array
i++; //increments i to point to the next element in num array
n++; //increments n to count the total number of elements
integer--; //decrements integer value at each iteration
mean = sum / n; } //compute the average of values
i=0;
while(size>0){ //loop executes until value of size exceeds 0
sumSquare += Math.pow(num[i]-mean,2); //takes the sum of square difference between each element of num array and value of mean
i++; //increments i
size--; } //decrements size
variance = sumSquare / (n-1); //compute variance by dividing the result of sum of the squares of their differences from the mean by n-1
sd = Math.sqrt(variance); //computes standard deviation by using sqrt function which takes the sqrt of the result of variance computed above
System.out.println("Average value is: " + mean+ " and the standard deviation is " + String. format("%.2f", sd)); }} //displays the average of numbers stored in mean variable and value of standard deviation is displayed up to 2 decimal places
Screenshots of both programs and their outputs is attached.
Which of the following is an example of a specialty search engine? a. NexTag b. Wolfram Alpha c. Bing d. Google
Answer:
b. Wolfram Alpha
Explanation:
A specialty search engine can be defined as a type of database query engine which searches for informations and indexes them based on a particular content, subject or focus such as location, topic, government, industry etc. A specialty search engine is different from the general-purpose search engines such as Bing, Google or Yahoo because it gives results that are tailored or more relevant to a particular user.
Wolfram Alpha is an example of a specialty search engine. A Wolfram Alpha is an answer search engine which gives answers to specific questions such as computational, arithmetic, geometric mathematics or calculus.
Also, note that a specialty search engine is commonly referred to as a topical or vertical search engine.
Wolfram Alpha is an example of a specialty search engine. Thus, option B is correct.
A specialty search engine can be defined as a type of database query engine which searches for informations and indexes them based on a particular content, subject or focus such as location, topic, government, industry etc. A specialty search engine is different from the general-purpose search engines such as Bing, Yahoo because it gives results that are tailored or more relevant to a particular user.
Wolfram Alpha is an example of a specialty search engine. A Wolfram Alpha is an answer search engine which gives answers to specific questions such as computational, arithmetic, geometric mathematics or calculus.
Also, note that a specialty search engine is commonly referred to as a topical or vertical search engine.
To know more about search engine visit:
https://brainly.com/question/32419720
#SPJ6
Create a conditional expression that evaluates to string "negative" if userVal is less than 0, and "non-negative" otherwise. Ex: If userVal is -9, out
Answer:
import java.util.Scanner;
public class Main
{
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Enter a number: ");
int userVal = input.nextInt();
String aString;
if(userVal < 0)
aString = "negative";
else
aString = "non-negative";
System.out.println(aString);
}
}
Explanation:
Ask the user to enter a number and set it to userVal
Check the value of userVal. If it is smaller than 0, set the string as "negative". If it is not, set it as "non-negative"
Print the string
What are some skills many CTSOs help their members develop? Check all that apply.
I've had this question before.
The answers are 2 & 4.
Leadership & career specific skills.
Answer:
2. Leadership
4. Career-specific skills
Explanation:
Just took the assignment
Hope this helps! :)
