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4 years ago

10

A theater sold 84 tickets for a play . The ratio of adult tickets to child tickets was 7/3 The ratio of adult tickets to Senior

tickets was 74

1 answer:

Romashka [77]4 years ago

3 0

Answer:

Is that the whole Question??

Step-by-step explanation:

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Determine u-x and o-x from the given parameters of the population and the sample.size. round the answer to the nearest thousandt

andriy [413]

The u-x and o-x from the given parameters of the population and the sample size will be u =28 and standard deviation is 5.

<h3>How to calculate the values?</h3>

From the information given about the population and sample mean, the values include:

u=27 o=5 n=14

The standard deviation will be:

= 5/✓14

= 5/3.74

= 1.34

Therefore, u-x and o-x from the given parameters of the population and the sample size will be u =28 and standard deviation is 1.34.

Learn more about population on:

brainly.com/question/25630111

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5 0

2 years ago

Which statement is true?<br> A<br> 7.9 <6.964<br> B<br> 7.9 > 6.964<br> с<br> 7.9 = 6.964

yuradex [85]

Answer:

the answer is b- 7.9>6.964

4 0

3 years ago

Read 2 more answers

The U.S. Energy Information Administration (US EIA) reported that the average price for a gallon of regular gasoline is $2.94. T

Anit [1.1K]

Answer:

a) 25

b) 67

c) 97

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample. In this problem, $\sigma = 0.25$

(a) The desired margin of error is $0.10.

This is n when M = 0.1. So

$M = z*\frac{\sigma}{\sqrt{n}}$

$0.1 = 1.96*\frac{0.25}{\sqrt{n}}$

$0.1\sqrt{n} = 1.96*0.25$

$\sqrt{n} = \frac{19.6*0.25}{0.1}$

$(\sqrt{n})^{2} = (\frac{19.6*0.25}{0.1})^{2}$

$n = 24.01$

Rounding up to the nearest whole number, 25.

(b) The desired margin of error is $0.06.

This is n when M = 0.06. So

$M = z*\frac{\sigma}{\sqrt{n}}$

$0.06 = 1.96*\frac{0.25}{\sqrt{n}}$

$0.06\sqrt{n} = 1.96*0.25$

$\sqrt{n} = \frac{19.6*0.25}{0.06}$

$(\sqrt{n})^{2} = (\frac{19.6*0.25}{0.06})^{2}$

$n = 66.7$

Rounding up, 67

(c) The desired margin of error is $0.05.

This is n when M = 0.05. So

$M = z*\frac{\sigma}{\sqrt{n}}$

$0.05 = 1.96*\frac{0.25}{\sqrt{n}}$

$0.05\sqrt{n} = 1.96*0.25$

$\sqrt{n} = \frac{19.6*0.25}{0.05}$

$(\sqrt{n})^{2} = (\frac{19.6*0.25}{0.05})^{2}$

$n = 96.04$

Rounding up, 97

8 0

3 years ago

Find the exact area of the shaded rejion sector and triangle with an angle of 120 and radius of 24

Marianna [84]

I would do 1/2 base* height pi and the cross out pi and divide 120 by 12 and your answer is :10...im not for sure but hopefully it helped.

3 0

3 years ago

The area of the square is 36 cm. 2 what is the formula that shows the length or side b

Vilka [71]

Answer:

36=b^2 or b=the square root of 36

Step-by-step explanation:

The sides of a square are all equal in length. To find the area of a square you can multiply the two sides together. Considering that they are the same length, you can just square one of the side lengths to get your answer. To find a side length you can take the square root of the area.

3 0

3 years ago

Read 2 more answers