Mathematics College

N= 17 and P=0.8 is it suitable to use a normal distribution

Answers

Answer 1

Answer:

Since n(1-p) < 10, it is not suitable to use a normal distribution.

Step-by-step explanation:

Suitability of the normal distribution:

In a binomial distribution with parameters n and p, the normal approximation is suitable is:

np >= 10

n(1-p) >= 10

In this question, we have that:

n = 17, p = 0.8. So

np = 17*0.8 = 13.6 -> Ok

n(1-p) = 17*0.2 = 3.4 -> No

So, since n(1-p) < 10, it is not suitable to use a normal distribution.

Related Questions

. Loraine had some flour in a jar. She made one batch of muffins that used 4 ¼ cups of flour. She now has 7 ¾ cups of flour left. How much flour did Loraine have to start?

Answers

Answer:

12 cups

Step-by-step explanation:

lets break it up, 7+4 = 11 and 3/4 + 1/4 = 1 and 11 + 1 = 12, so the answer is 12.

Is this a function ?

Answers

Answer:

yes

Step-by-step explanation:yes

Х
Find the slope of the line that contains the following pair of points: (1, 2), (5, 2).
A. -1
0
B. 0
C. 4
D. Undefined

Answers

Answer:

B. 0

Step-by-step explanation:

2-2/5-2= 0/3= 0

Another way to look at this is that because they have the same y coordinate, it must simply be a horizontal line, which has a slope of 0

What is 3/4 divided by 1/8? Show/explain your reasoning. (I need this answer ASAP please.)

Answers

Answer:

3/4 divided by 1/8 Is 6

Step-by-step explanation:

Parks department ordered a total of 100 bats and balls. The bats are $20 and balls are $4.50 each. The total invoice was $822.00 . How many of each item were ordered?

Answers

Answer:

Number of bats ordered = 24

Number of balls ordered = 76

Step-by-step explanation:

Let,

x be the number of bats ordered

y be the number of balls ordered

According to given statement;

x+y = 100       Eqn 1

20x+4.50y = 822     Eqn 2

Multiplying Eqn 1 by 20

20(x+y=100)

20x+20y=2000     Eqn 3

Subtracting Eqn 2 from Eqn 3

(20x+20y)-(20x+4.50y)=2000-822

20x+20y-20x-4.50y=1178

15.50y = 1178

Dividing both sides by 15.50

[tex]\frac{15.50y}{15.50}=\frac{1178}{15.50}\\y=76[/tex]

Putting y=76 in Eqn 1

x+76 = 100

x= 100-76

x = 24

Hence,

Number of bats ordered = 24

Number of balls ordered = 76

House prices in the neighborhood average at $90.05 per square foot. If the house has 1055 square feet, what should be its price?
A. $139,750
B. $109,000
C. $95,000
D. $124,000

Answers

Answer:

C. $95,000

Step-by-step explanation:

90.05 times 1055 is $95,000.75 the closest number to that is $95,000.

Garrett ran 21 1/2 miles last week. He ran
17 7/8 miles this week. How many miles did
he run in all?

Answers

Answer:

39 3/8

Step-by-step explanation:

Does the point(1, 8)satisfy the inequality y ≥ 7x + 1?

Answers

Answer:

Yes

Step-by-step explanation:

Plug in the point (1,8)

y=8, x=1

8≤7(1)+1

8≤7+1

8≤8

Answer:

Yes.

Step-by-step explanation:

y  ≥ 7x + 1.

Plug the values in:

y = 8

7x + 1 = 7(1) + 1 = 8

As the inequality sign is ≥ then the point (1, 8) satisfies it.

Write an equation in slope-intercept form for the graph of
the line shown.
(y=mx+b)

Answers

The answer for 25 is y=3x+1
The answer for 24 is y=3x+5

Draw circles and triangles in the ratio 2 : 5. PLS AWNSER

Answers

Answer:

bru h draw them on your paper

Step-by-step explanation:

can someone simplify 6t+10t–9t

Answers

Answer:

6t + 10t - 9t

(6 + 10 - 9 ) t

7t

Step-by-step explanation:

Answer:

7t

Step-by-step explanation:

A horse ranch has a circular training pen with a radius of 30 feet. Which measure is closest to the circumference of the training pen?

A.
9,420 ft

B.
2,826 ft

C.
188 ft

D.
94.2 ft

If ancwere i will mark brainlist

Answers

Answer:C

Step-by-step explanation:

Find the value of x.

7

D

Х

3

x =

V[?]

Answers

Answer:

three three

Step-by-step explanation:

3 :/ '-' +-+???????

pls help IM TIMED!!!!!!!!!!!!!!

Answers

Answer:

option 2 and 4 for the first slide

option 3 for the second slide

Step-by-step explanation:

20 = 9u - 7
How do you solve this

Answers

Answer:

U=3

Step-by-step explanation:

Since 9*3=27, and 27-7=20, U=3.

Answer:

You can make it more simple by swapping it to be 9u-7=20. Then you can solve it to be U=3

Step-by-step explanation:

9u-7=20

+7 +7

9u=27

9u divided by nine+ 27 divided by nine

U=3

please help me im confused​

Answers

the answer is D 5(z/x)^10

Solve for w: 2w/5 - 9 = 11​

Answers

Answer:

w= 50

Step-by-step explanation:

Answer: x = 50

Step-by-step explanation: 2w/5 - 9 = 11

                                                       +9    +9

                                                                20

2w/5 = 20

     *5    *5

             100

2w = 100

 2       2       = 50 so x = 50

Plot a point on the coordinate plane to represent each of the
ratio values in the table.
I need help please

Answers

(1,4) you go right 1 time, and than go up 4.

What is the slope and y-intercept of 5x+2y=-10

Answers

Answer:

slope =  - 5/2

y-intercept = (0,-5)

Step-by-step explanation:

A code consists of eight letters chosen from the 26 letters of the alphabet. What is the chance that any two of the letters are the same?

Answers

Answer:

1/26 or 0.039 (approximate to 3 decimal places)

Step-by-step explanation:

A code consists of 8 letters of the English alphabet (which comprises a total of 26 distinct letters). What is the chance or probability that any 2 letters of/in the code are the same?

An example of such code with a repeated letter is GREENMAN.

This word (code) has 2 letters that are the same and that's letter 'E'.

The probability that a letter in the code in question will appear twice depends on the frequency of appearance of that letter in the English alphabet set.

Now, no letter in the English alphabet set appears twice! Because of this, every letter in the English alphabet has an equal probability of being picked to form a code or word.

Hence, the chance that any letter from the alphabet will be repeated once in this code (same as saying the chance that any two letters of the code are the same) is 1/26 and that's equal to 0.03846 ≅ 0.039

Create a proportion using the form %/100=is/of to represent the following word problem. 78% of what number is 42?
​

Answers

First 42/78% to get 1% then multiply the number by 100% to get around 53 11/13

A cell phone company recently noticed a 26% sales decrease in the month of July compared to June. Let n represent June’s sales. If y represents July’s sales, which equation can be used to determine the sales in July?

Answers

N x 26% = Y
Hopes this helps

Answer:y = n - 0.26n

Step-by-step explanation:hope this helps

3 (x + 4 )- 5 (x -1 )<5

Answers

Answer:

3=

(x+4)−5=x−1x−1<5=x−1<5

Step-by-step explanation:

Answer:

x > 6

Step-by-step explanation:

Bus A and Bus B leave the bus depot at 3 pm.
Bus A takes 25 minutes to complete its route once and bus B takes 30 minutes to complete its route once.
If both buses continue to repeat their route, at what time will they be back at the bus depot together?
Assume the buses have no breaks in between routes.
Give your answer as a 12-hour clock time.

Answers

Step-by-step explanation:

Bus A leave depot at = 3pm

Bus B leave depot at = 3 pm

both leave depot at 3 pm so

Bus A complete its route in25 mins

Bus A reach at his point at 3:25 pm

Bus B complete its route in 30 mins

Bus B reach at his point at 3:30 pm

So

If the buses go back to depot it will take 25 mins so Bus A reach back at depot at 3:50 pm

Bus B at 4:00 pm

What value of x makes this equation true?
1.2x - 10 = 0.2x + 14
A 4
B 14
C 24
D 6

Answers

24 makes the equation true

Express the fraction StartFraction 6 Over 22 EndFraction as a percent. Round the answer to the nearest whole percent. %

Answers

Answer:

27%

Step-by-step explanation:

6/22 is 0.27. when you divide 6 by 22 you get the decimal.

Answer:

27%

Step-by-step explanation:

Find the area of each figure. around to the nearest tenth if necessary.

Answers

Answer:

68 cm²

Step-by-step explanation:

I don't see what you mean for each figure but here goes nothing!

We can split the figure in 2 rectangles

We find the first rectangle by doing 4 x 12 = 48 cm²

The second rectangle would be 5 x 4 = 20 cm²

Therfore we add them up into 20 + 48 = 68 cm²

Hope This Helps!

3/16 divided by 2 1/4

Answers

I got 0.0833333 that’s what I got

can someone help me please

Answers

Answer:

r68or68888

Step-by-step explanation:

I cant see it properly

Convert 16 feet into meters using the conversion factor 1 meter = 3 feet

Answers

Answer:hi

Step-by-step explanation:

16 feet is equal to 5.33 meters when using the conversion factor 1 meter = 3 feet.

To convert 16 feet into meters using the conversion factor 1 meter = 3 feet, you can follow these steps:

Start with the given value in feet, which is 16 feet.

Apply the conversion factor of 1 meter = 3 feet.

Set up the conversion factor as a fraction, with meters in the numerator and feet in the denominator:

(16 feet) × (1 meter/3 feet)

Multiply the given value (16 feet) by the conversion factor:

(16 feet) × (1 meter/3 feet)

= (16/3) meters

Simplify the fraction:

16/3 meters = 5.33 meters (rounded to two decimal places)

To learn more on Conversion factor click:

https://brainly.com/question/30567263

#SPJ6

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