73. in order to estimate the proportion, p, of defective transistors in a lot containing 100,000 transistors, a sample of size 800 is drawn yielding 5 defective transistors. a. use the sample to give a point estimate for p. b. how large a sample would be required to estimate p within 0.1% at the 95% level of confidence?

Answers

Answer 1

For option, A point estimate p is = 5/800 = 0.00625

For option B 23860 large sample must be required to estimate p within 0.1% at 95% level of confidence.

Margin of Error = 0.1% = 0.001

The critical Z value for a 95% confidence level is 1.96

Required sample size, n = (z / E)² * p(1-p)

= (1.96 / 0.001)² * 0.00625 * (1 - 0.00625)

= 23860       (Rounding to the nearest integer)

Point estimate of difference in means = 89.5 - 55.9 = 33.6

The standard error (SE) of the sampling distribution of the difference in means is

SE = √{ (s_1²/n1) + (s_2²/n2) }

= { √(16.8²/78) + (8.2²/117) }

= 2.047721

Degree of freedom = min(n1 - 1, n2 -1) = min(78-1, 117-1) = 77

The critical value of t at df = 77 and the 99% confidence interval is  2.64

99% confidence interval of the difference in means is,

(33.6 - 2.64 * 2.047721 , 33.6 + 2.64 * 2.047721)

(28.19, 39.01)

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Related Questions

You usually buy the same small bottle of shampoo. There is a larger, 6. 7-ounce bottle that says it gives you 25% more free. What is the size in ounces of the original smaller bottle of shampoo? round your answer to the nearest tenth.

Answers

The original size of shampoo = 5.36 ounce

Calculating Percentages:

In mathematics, percentages are represented as fractions of 100 in the form of integers or ratios. In most cases, they are indicated by "60%" or 65 percentage and 60% can be expressed as (60/100). They can also be expressed as decimal fractions or simple fractions.  

Here are some examples to find percentages,

60% of 200 = (60/100) × 100

50% of n = (50/100) × n  

Here given that

There is a bottle of shampoo whose size is 6.7 ounces

It is given that the bottle says it gives 25 percent freer

Let's assume that the original bottle size is x ounce

As we know the bottle gives you a 25% extra

The free amount that can be given on x ounce = [tex]\frac{25}{100} x[/tex] = 0.25x

then the final size of the battle will be = x + 0.25x = 1.25x ounces

As we the bottle size = 6.7 ounces

=> 1.25x = 6.7      

=>  x = 6.7/1.25 = 5.36

=>  x = 5.36 ounce

Therefore,

The original size of shampoo = 5.36 ounce

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there are 8 members on a committee. if they must form a subcommittee of 3 members, how many different subcommittees are possible

Answers

Out of 8 members of the committee, it is possible to create two subcommittees only.

We know that in order to create subcommittees. we need to divide the total number of people on the committee into equal parts so that they form subcommittees.

Here, it is given that there are 8 members on the committee.

A subcommittee needs to have 3 people in it.

On dividing 8 people into groups of three, we get

[tex]\frac{8}{3}[/tex]

⇒ 2.66..

Here, it is obvious that the 0.66... can not be considered because it is not a whole number and hence, does not mean any number of people.

So, we can create only two different subcommittees from 8 members on the main committee.

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What is the area of a triangle with vertices at (-3, 1), (-6, 5), and (1, 1)?
Enter your answer in the box.

Answers

The area of a triangle is 8.

What is the area of a triangle?

Area of a triangle = [s(s - a)(s - b)(s - c)], where s is the triangle's semi-perimeter and a, b, and c are the lengths of the triangle's three sides.

We know that the area of the triangle whose vertices are (x1 ,y1),(x2 ,y2), and (x3, y3) is:

1/2 |x1(y2−y3)+x2(y3−y1)+x3 (y1−y2)|

Area of triangle = 1/2 |-3(5 − 1)+ (-6)(1−1) + 1(1 − 5)|

Area of triangle = 1/2 |-12 + (-4)|

Area of triangle = 8

Hence, the area of a triangle is 8.

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Which of the following is an example of a linear function in two variables?
a. 13 - √x = y
b. 3.1y - 6 = 7x
c. 3x + 4y = 11z + 1
d. 10 - xy = 4

Answers

The option that is an example of a linear function in two variables is b. 3.1y - 6 = 7x

What is a linear function?

Linear functions have a straight line as their graph. The following is the form of a linear function. y = f(x) + a+bx There is one independent variable and one dependent variable in a linear function.

A straight line on the coordinate plane is represented by a linear function. For example, y = 3x - 2 denotes a straight line on a coordinate system.

Linear equations are classified into three types: point-slope, standard, and slope-intercept.

In this case, we can see that the variables are x and y. Therefore, the correct option is B.

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Simplify 5(2x-3)-2(3x-8)

Answers

Answer: 4x+1

Step-by-step explanation:

1.  5(2x-3)-2(3x-8)

2. 10x-15-2(3x-8)

3. 10x-15-6x+16

4. 10x+1-6x

5. 4x+1

Answer:

4x+1

Step-by-step explanation:

First you have to expand it like 10x-15-2(3x-8) Basically multiplying 5 with 2x and -3.

Then take -2 multiply with 3x and -8  which will make it  10x-15-6x+16

Now Put together the like terms 10x-6x -15+16

Which makes it 4x+1

Hope it helped! I am a student too.

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PLEASE HURRY!!! Steve claims that the points (-4,8) (8,8) and (-4,3) form a right triangle. Use the distance formula and the Pythagorean theorem to determine if Steve is correct. Show your work and explain your reasoning.

Answers

Steve claims that the points (-4,8) (8,8) and (-4,3) form a right triangle. Yes, Steve is correct.

What is the Pythagoras theorem?

The square of the hypotenuse in a right-angled triangle is equal to the sum of the squares of the other two sides.

As we know the distance between (a, b) and (c, d) is:

distance = √( (a - c)² + (b - d)²)

The distance between (-4, 8) and (8, 8) is:

d₁ = √( (-4 - 8)² + (8- 8)²) = 12

The distance between (8, 8) and (-4, 3) is:

d₂ = √( (8 + 4)² + (8- 3)²) = 13

The distance between (-4, 8) and (-4, 3) is:

d₃ = = √( (-4 + 4)² + (8 - 3)²) = 5

If the Pythagorean theorem is correct, then the square of the larger side must equal the sum of the squares of the two shorter sides, which means that:

5² + 12² = 13²

Solving that we get:

25 + 144 = 169

169 = 169

Thus, Steve claims that the points (-4,8) (8,8) and (-4,3) form a right triangle. Yes, Steve is correct.

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Solve for X


DUE TMR HELPPP

Answers

Answer:

x = 10

Step-by-step explanation:

Those are opposite interior angles, meaning that they have the same angle measure, so just set them equal to each other to solve for x:

32-x = 3x-8

32 = 4x-8

40 = 4

10 =

.
Find the value of the variable(s) in each figure.
(9x+12)3x(4y-10)13x

Answers

For the given figure, the value of the variable x is 14° and the value of the variable y is 37°.

Variable:

Variable is known as an alphabet which is used to represent the unknown number.

Given,

Here we have the figure with the expressions

(9x + 12)°

3x°

(4y - 10)°

Now, we have to find the value of the variables x and y.

Here we know that the "If two lines which are parallel are intersected by a transversal then the pair of interior angles on the same side of the transversal are supplementary."

So, here we have write the given values as,

=> (9x + 12)° + 3x° = 180°

=> (12x + 12)° = 180°

=> 12x° = 168°

=> x = 14°

Similarly, the value of y s calculated as,

=> (4y - 10)° + 3x° = 180°

We know the value of x, then the value of y is,

=> (4y - 10)° + 3(14)° = 180°

=> 4y - 10 + 42 = 180°

=> 4y = 148

=> y = 37°

Therefore, the value of the variable x is 14° and the value of the variable y is 37°.

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If a population of 1000 people were to increase by 5% every year, what would the
population be in 20 years?

Answers

Population in 20 years is 2654 .So option(2) is correct

A percentage is a percentage of something expressed as a number between 0 and 100 rather than as a fraction. Nothing is zero percent, everything is 100 percent, half of everything is fifty percent, and nothing is zero percent.

Given that a population of 1000 people were to increase by 5% every year

We have to determine the population be in 20 years

P = 1000

R = 5

T = 20

Population in 20  years = P[(1+(r/100)]t

= 1000[1 + 5/20]20

= 1000(21/20)20

= 1000 x 2.6538

= 2653

Therefore population in 20 years is 2654

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Which ordered pair in the form (x, y) is a solution of this equation? x+6y=9 (4.1) (2,1) (12,2) (-3,2)​

Answers

It should be (-3,2)
Explanation
-3+6(2)=9
6x2=12
12-3=9

What is the simplified form of this expression? (x+y)(x³y-3)

Answers

The simplified form of this expression is x^4y-3x+y^2x^3-3y

From the question, we have

(x+y)(x^3 y-3)

= xx^3 y-x⋅3+yx^3 y-y⋅3

=x^4y-3x+y^(1+1) x^3-3y

=x^4y-3x+y^2 x^3-3y

The simplified form of this expression is x^4y-3x+y^2 x^3-3y

Multiplication:

Mathematicians use multiplication to calculate the product of two or more numbers. It is a fundamental operation in mathematics that is frequently utilized in everyday life. When we need to combine groups of similar sizes, we utilize multiplication. The fundamental concept of repeatedly adding the same number is represented by the process of multiplication. The results of multiplying two or more numbers are known as the product of those numbers, and the factors that are multiplied are referred to as the factors. Repeated addition of the same number is made easier by multiplying the numbers.

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Jeriel has a smart phone data plan that costs $45 per month that includes 6 gb of data, but will charge an extra $15 per gb over the included amount. How much would jeriel have to pay in a month where he used 2 gb over the limit? how much would jeriel have to pay in a month where he used went over by xx gb?.

Answers

Jeriel pays $75 for an additional 2 GB of data, and 45+15x for every further 1 GB of data.

What is expression?

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation. An expression's structure is as follows: (Number/variable, Math Operator, Number/variable) is an expression. A mathematical expression is a phrase that has a minimum of two numbers or variables and at least one mathematical operation. Let's examine the writing of phrases. The other number is x, and a number is 6 greater than half of it. In a mathematical expression, this proposition is denoted by the equation x/2 + 6.

Here,

For 6 GB, the cost is $45.

For per GB extra the cost is $15.

The cost of data paid by Jeriel,

=45+2*15

=$75

For x GB, the cost is,

=45+15x

The cost of data paid by Jeriel for 2 GB extra data is $75 and for x GB, the cost paid is 45+15x.

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A new soup recipe contains 33\%33%33, percent less sodium per serving than the old soup recipe. The old soup recipe contained xxx milligrams of sodium per serving.
Which of the following expressions could represent the amount of sodium per serving, in milligrams, in the new soup recipe?

Answers

The expression that could represent the amount of sodium per serving, in milligrams, in the new soup recipe would be = (1 - 33/100)X but when simplified it can be represented with 0.67x.

What is sodium?

Sodium is defined as an element that is made up of 11 electrons revolving round it's atomic orbit. It serves as the major component of common salt found in food products.

From the question;

The new soup recipe = - 33% = - 33/100

The old soup recipe = X milligrams.

Since the new recipe is 33/100 less than the old soup recipe.

The new soup recipe would be = (1 - 33/100)X

When further simplified;

= 1 - 33/100

= 100-33/100

= 67/100

= 0.67x

Therefore, the new soup recipe can be represented with the above derived expressions such as (1 - 33/100)X and 0.67x when simplified.

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A line has a slope of 2 and passes through the point (–1, –6) . What is its equation in slope -intercept form?

Answers

Answer:

y - y = m(x - x)

y + 6 = 2(x + 1)

y + 6 = 2x + 2

y = 2x -4

Kelsey buys several pairs of uniform pants for $17.95 each, and a sweater for $24.
Jeana shops at a different store and buys several pairs of uniform pants for $18.95 each, plus a sweater for $18.
They set up the situation with the equation below, where x is the number of pairs of pants.
Is there a situation in which they pay the same amount for their purchases?
Select all the statements that correctly represent this situation.
17.95x + 24 = 18.95x + 18
OA
OB
There are no solutions to the equation.
There is one solution to the equation.
Review Progress
Type here to search
O
E
Q
What type of solution is this?

Answers

There is one solution to the equation.

What is solution of the equation?

An assignment of values to the unknown variables that establishes the equality in the equation is referred to as a solution. To put it another way, a solution is a value or set of values (one for each unknown) that, when used to replace the unknowns, cause the equation to equal itself.

Given: Kelsey buys several pairs of uniform pants for $17.95 each, and a sweater for $24.

Jeana shops at a different store and buys several pairs of uniform pants for $18.95 each, plus a sweater for $18.

The equation represents the situation is,

17.95x + 24 = 18.95x + 18

Subtract 18 from both sides,

17.75x + 24 - 18 = 18.95x + 18 - 18

        17.95x + 6 = 18.95x

18.95x - 17.95x = 6

                       x = 6

Therefore, there is one solution to the equation.

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What is the correct order of the steps used to derive the identity? 4, 3, 5, 1, 2 4, 5, 3, 1, 2 3, 4, 5, 1, 2 3, 4, 1, 5, 2

Answers

The correct order of the steps used to derive the identity is (A.) 4, 3, 5, 1, 2.

What is the way to determine the correct order of the steps?

The trigonometry identity is given as:  tan(2x)

When the tangent formula is applied, we have: Tan (2x)  = Sin (2x)/Cos (2x)......................(4)

Expand Sin (2x) and Cost 2x)

Tan (2x) = 2 Sin (x) Cos (x)/Cos (x) - Sin²(x)..........................(3)

It can be inferred therefore that the list that obeys the above order is:
Option (a) 4, 3, 5, 1, 2.

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Full Question:²

What is the correct order of the steps used to derive the identity?

A.) 4, 3, 5, 1, 2

B.) 4, 5, 3, 1, 2,

C.) 3, 4, 5, 1, 2

D.) 3, 4, 1, 5, 2

Which expression is not equivalent to (5^2x)^3

Answers

Answer:

#3

Step-by-step explanation:

For this... you just multiply the exponents together to get 6x

   any of the others that do NOT have 6x as a product of exponents is not equiv    ..... so #3 is not equivalent  

Option 3 is not equivalent to the given expression.

What is an equivalent expression?

Equivalent expressions are expressions that work the same even though they look different. If two algebraic expressions are equivalent, then the two expressions have the same value when we plug in the same value for the variable.

The given expression is (5²ˣ)³.

Now, (5⁶ˣ)

(5ˣ)⁶

(5²)³ˣ

Therefore, option 3 is not equivalent to the given expression.

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The table shows the high temperature on the moon during the day and the overnight low temp.

time of day | temperature
day | 253
night | -387

what is the range between the moons minimum temp in degrees fahrenheit?

Answers

The range between the moon's minimum and maximum temperature in degrees Fahrenheit is 640°F

From the question, we have

Time of Day     Temperature

   Day                 253°F

   Night              -387°F

the moon's minimum temperature =  -387°F

and maximum temperature =  253°F

range = 253 - (-387) =  640°F

Subtraction:

Subtraction represents the operation of removing objects from a collection. The minus sign signifies subtraction −. For example, there are nine oranges arranged as a stack (as shown in the above figure), out of which four oranges are transferred to a basket, then there will be 9 – 4 oranges left in the stack, i.e. five oranges. Therefore, the difference between 9 and 4 is 5, i.e., 9 − 4 = 5. Subtraction is not only applied to natural numbers but also can be incorporated for different types of numbers.

The letter "-" stands for subtraction. Minuend, subtrahend, and difference are the three numerical components that make up the subtraction operation. A minuend is the first number in a subtraction process and is the number from which we subtract another integer in a subtraction phrase.

Complete question:

The table shows the high temperature on the moon during the day and the overnight low temperature.

Time of Day Temperature

Day 253°F

Night –387°F

What is the range between the moon's minimum and maximum temperature in degrees Fahrenheit?

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What does the data above tell you about the difference in haircut costs between women and men? You may want to discuss similarities or differences in the shape, center, and spread of the data. Explain your reasoning and give mathematical evidence to support any claim that you make.

Answers

The difference shows that woman on average pays higher than men.

What  is mean/ average?

Mean is that the average of the given ranges and is calculated by dividing the add of given numbers by the whole number of numbers.

Main body:

The wider range in prices may be due to the higher number of observation.

females have a bigger spread and overall higher cost. 50% of females spend between $20-$75 on a haircut, while 50% of men only spend between $9.25-$20. The median for Female is also significantly higher.

The mean is higher due to the high max valves that are bringing the mean up.

Hence from observing we can say that woman on average pays higher than men.

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The volume of a 6 ft tall square pyramid is 8 cubic ft. How long are the sides of the base?.

Answers

The sides of the base of pyramid is 2ft long.

the height of pyramid = 6ft

Volume of pyramid = 8cubic ft

Area of base = A

Formula:

Volume of pyramid = (Area of the base)*(height)/3

8 = (A)*6/3

8 = (A)*2

A = 8/2

A = 4

the total area is 4ftsquare , so

each base is 2 ft.

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Quiz scores
Data set: 5, 6, 6, 7, 7, 7, 8, 8, 8, 9, 10, 10, 10, 10, 11, 11, 13, 15, 15
Calculate the mean of the data set.
Calculate the range.
If you scored 7 on the quiz, how far did you deviate from the mean?
If you scored 15 on the quiz, how far did you deviate from the mean?

Answers

The mean of the data set is 9.26

The range is 10

The deviation when we scored 7 is 2.26 and when we scored 15 is 5.74.

Given, the quiz scores of a class.

Data set: 5, 6, 6, 7, 7, 7, 8, 8, 8, 9, 10, 10, 10, 10, 11, 11, 13, 15, 15

Mean = (Sum of all values)/(Total no. of values)

Mean = 176/19

Mean = 9.26

The range = 15 - 5 = 10

If I scored 7 on the quiz, then I will deviate (9.26 - 7) = 2.26

Similarly, If we scored 15 on the quiz, then I will deviate (9.26 - 15) = 5.74

Hence, the mean of the data set is 9.26

the range is 10

and the deviation when we scored 7 is 2.26 and when we scored 15 is 5.74.

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What is the area of ABCD rhombus?.

Answers

As the amount of space a rhombus encloses in a two-dimensional space can be defined as its area, the ABCD rhombus's area is A = 12 d1 d2.

What precisely is a rhombus?

A particular type of rhombus is a parallelogram. In a rhombus, the opposing sides or angles are parallel as well as equal. A rhombus also has sides that are each the same length, and its diagonals come together at right angles to make its shape. A diamonds or rhombus is also referred to as a "rhombus."

How come ABCD is a rhombus?

The diagonal lines are parallel. A rhombus is what it is. The parallelogram is a rectangle, rhombus, and square since the diagonals are all congruent and perpendicular to one another. It is a rhombus, ABCD.

Rhombus Area Calculation Formulas

Diagonal Use, A = ½ x d1 x d2

A = b h using Base and Height

Trigonometry is used, A = b2 × Sin (a)

Where b = length of any side, h = height of rhombus, d1 = length of diagonal 1, d2 = length of diagonal 2, a = measure of any inner angle

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A bird is at the very top of a 35 feet tree. He spies a worm that is 50 feet from the base of the tree. Set up a right triangle picture to find the distance from the bird to the worm.​

Answers

You square 35 which gives you 35•35=1,225 then you square 50, 50•50=2,500 add them together 1,225+2,500=3,725 and find the square root of 3,725 which equals 61.0327781 or 61

The distance from the bird to the worm is approximately 61.06 feet.

To set up a right triangle picture to find the distance from the bird to the worm, we can use the given information about the bird's position and the worm's position.

Let's consider the bird at the top of the tree as the highest point of the triangle. The height of the tree, 35 feet, represents the vertical side of the triangle. The worm's position, which is 50 feet from the base of the tree, represents the horizontal side of the triangle.

Now, to find the distance from the bird to the worm, we need to find the hypotenuse of the right triangle, which represents the direct line from the bird to the worm.

By using the Pythagorean theorem, which states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides, we can set up the equation:

h² = 35² + 50²,

where h represents the length of the hypotenuse.

Solving this equation, we find:

h² = 1225 + 2500,

h² = 3725.

Taking the square root of both sides, we get:

h ≈ √3725 ≈ 61.06 feet.

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find the exact value of the fallowing ,give your answers as factions ;
a)3^-2
b)4^-3
c)2^-6

Answers

A fraction is written in the form of a numerator and a denominator where the denominator is greater than the numerator.

3² = 3 X 3 = 9

4³ = 4 x 4 x 4 = 64

[tex]2^{6}[/tex] = 2 x 2 x 2 x 2 x 2 x 2 = 64

The exact value in fractions are:

a) 1/9

b) 1/64

c) 1/64

What is a fraction?

A fraction is written in the form of a numerator and a denominator where the denominator is greater than the numerator.

Example: 1/2, 1/3 is a fraction.

We have,

[tex]3^{-2}[/tex]

= 1/3²

3² = 3 X 3 = 9

= 1/9

[tex]4^{-3}[/tex]

= 1/4³

4³ = 4 x 4 x 4 = 64

= 1/64

[tex]2^{-6}[/tex]

= 1/[tex]2^{6}[/tex]

[tex]2^{6}[/tex] = 2 x 2 x 2 x 2 x 2 x 2 = 64

= 1/64

Thus.,

The exact value in fractions are:

a) 1/9

b) 1/64

c) 1/64

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Jemmy throws the dice twice. What is the probability of getting 3 on the top for both dice?.

Answers

Assuming the dice are six-sided and fair:

A fair D6 only has one three among its six numbers. So, 1:6, or about 16.7%.

Ooh, two dice! Now there’s two threes among a total of twelve possibilities…but wait! Two over twelve is the same as one over six! So… 1:6, or about 16.7%.

Hope this helped!

Cheers =D

consider . the function is a. continuous on . b. discontinuous but piecewise continuous on . c. neither. is exponentially bounded on ? ? does the laplace transform of exist (on some domain)?

Answers

The function f(x)=x³-e⁻⁷ˣ is continuous function. That is a continuous function is one whose graph is continuous throughout without any pauses or leaps.

Given that,

The function is f(x)=x³-e⁻⁷ˣ

We have to find the function f(t) is it continuation on 0≤t<8.

We know that,

Take the function f(x)=x³-e⁻⁷ˣ

What is continuous function?

As the name implies, a continuous function is one whose graph is continuous throughout without any pauses or leaps. To put it another way, we say that a function is continuous if we can draw the curve (graph) of the function without ever picking up the pencil.

Therefore, The function f(x)=x³-e⁻⁷ˣ is continuous function. That is a continuous function is one whose graph is continuous throughout without any pauses or leaps.

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Megan opens a savings account which gives compound interest of 2.5% per
year. She puts £2000 into it.
a) How much money will Megan have in the account after 7 years?
b) How much interest will Megan have earned from this account after 7 years?
Give your answers in pounds (£) to the nearest 1p.

Answers

Using compound interest, it is found that:

a) The amount of money that she will have is of £2377.

b) The interest she will have earned is of £377.

What is compound interest?

The balance of an investment of P in compound interest after t years is modeled as follows:

[tex]A(t) = P\left(1 + \frac{r}{n}\right)^{nt}[/tex]

In which the remaining parameters are:

r is the interest rate, as a decimal value.n is the number of times that interest is compounded per year, annually n = 1, semi-annually n = 2, quarterly n = 4, monthly n = 12.

The values of these parameters in this problem are given as follows:

P = 2000, r = 0.025, n = 1, t = 7.

Hence the balance of the account after 7 years will be of:

[tex]A(t) = P\left(1 + \frac{r}{n}\right)^{nt}[/tex]

[tex]A(7) = 2000\left(1 + \frac{0.025}{1}\right)^{7}[/tex]

A(7) = 2377.

The interest earned is calculated as the final balance subtracted by the principal, hence:

I(7) = A(7) - P

I(7) = 2377 - 2000

I(7) = 377.

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A doctor prescribes 250 milligrams of a therapeutic drug that decays by about 10% each hour. Write an exponential model representing the amount A in milligrams of the drug remaining in the
patient's system after t hours.
A(t)=
Use the formula to find the amount of the drug that would remain in the patient's system after 3 hours. Round to the nearest milligram.
mg

Answers

A(3) = 185mg

Formula for exponential growth/decay is

A(t) = A0 * e^(xt)

Where A0 is your initial amount

x is your percentage

t is the time

A(3) = 250 * e^(-0.1*3)

A(3) = 185.2mg

Key point x is negative in this case as it's a decaying function. If it was growth it would be positive

what is the difference between the sum of the first 20032003 even counting numbers and the sum of the first 20032003 odd counting numbers?

Answers

Answer: The difference between sum of first 20032003 even numbers and sum of first 20032003 odd numbers is “-20032003”.

Step-by-step explanation:

The sum of first 20032003 even numbers:

[tex]Summation E=E_{1}+E_{2}+E_{3}+ . . . . . +E_{20032003}[/tex]

The sum of first 20032003 odd numbers:

[tex]Summation O=O_{1}+O_{2}+O_{3}+ . . . . . +O_{20032003}[/tex]

Difference between the sum of first 20032003 even numbers and the sum of first 20032003 odd numbers:

[tex]Difference=Summation E - Summation O=(E_{1}+E_{2}+E_{3}+ . . . . . . . +E_{20032003})-(O_{1}+O_{2}+O_{3}+ . . . . . . . +O_{20032003})[/tex]

[tex]Difference=(E_{1}-O_{1})+(E_{2}-O_{2})+(E_{3}-O_{3})+ . . . . . . . +(E_{20032003}-O_{20032003})[/tex]

Even numbers start as 0, 2, 4, 6…. While odd numbers start as 1, 3, 5, 7…..

(assuming that we are taking non-negative even/odd numbers into account only)

As we know, every nth even number is one behind their respective odd number (i.e. 0 lags 1, 2 lags 3, 4 lags 5 and so on)

Thus, our equation of difference becomes,

[tex]Difference=(-1)_{1}+(-1)_{2}+(-1)_{3}+ . . . . . . . +(-1)_{20032003} =(-1)*20032003=-20032003[/tex]

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17. how many cards must be drawn from a standard 52-card deck to guarantee 2 cards of the same suit?

Answers

If you want to guarantee that two cards are from the same suit, you need only draw five cards (since there is no way you can draw five cards without at least two of them being the same suit)

What is probability ?

Probability turned into added into arithmetic to are expecting the possibility of an occasion occurring. Probability essentially approach how in all likelihood it's miles that some thing will happen. This is the fundamental principle of possibility and is likewise utilized in possibility distributions to examine feasible consequences of random experiments.

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