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igor_vitrenko [27]

2 years ago

10

The table below shows the relationship between the buses in the school parking lot and and the number of students on them. What

does the slope of the line containing these points represent?

1 answer:

lawyer [7]2 years ago

7 0

Answer:

Please add the diagram

Step-by-step explanation:

You might be interested in

Please help me will mark as brainlist

Nookie1986 [14]

Answer:

17.3825

Step-by-step explanation:

First I figured out the area of the square which is 18×18=324

Then I found out the are of the circle which is 254.47, so 324 - 254.47 = 69.53

Then there are 4 times the shaded are so divided by 4, so 69.53 ÷ 4 = 17.3825

PLEASE GIVE BRAINLIEST!

3 0

3 years ago

Read 2 more answers

An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in California. Suppose that

sergiy2304 [10]

Answer:

(22.0297, 23.3703)

Step-by-step explanation:

Given that an economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in California.

Let X be per capita income (in thousands of dollars) for a major city in California.

Mean = 22.7

n = 183

Population std dev = 6.3

Since population std dev is known we can use Z critical value.

Std error = $\frac{6.3}{\sqrt{183} } \\=0.4657$

Z critical =1.44

Marginof error = ±1.44*0.4657=0.6706

Confidence interval 85%

= $(22.7-0.6703, 22.7+0.6703)\\= (22.0297, 23.3703)$

7 0

2 years ago

There will be 25 party guests. 8

Zinaida [17]

First you need to know how much each guest will eat

7 0

3 years ago

Read 2 more answers

if a company has 150 shares of common stock ans $15,000.00 to be distributed to its holders, how much would each share receive?

Yuri [45]

C. 1oo because 100 * 150 = 15000

7 0

3 years ago

Read 2 more answers

An automobile manufacturer would like to know what proportion of its customers are not satisfied with the service provided by th

monitta

Answer:

a) n =1623

b) $ME=2.0538\sqrt{\frac{0.21 (1-0.21)}{1623}}=0.0208$

Step-by-step explanation:

1) Notation and definitions

$n$ random sample taken

$\hat p=0.19$ estimated proportion of customers are not satisfied with the service provided by the local dealer

Confidence =0.96 or 96%

Me= 0.02 represent the margin of error

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The population proportion have the following distribution

$p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

Part a

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 96% of confidence, our significance level would be given by $\alpha=1-0.96=0.04$ and $\alpha/2 =0.02$ . And the critical value would be given by:

$z_{\alpha/2}=-2.0538, z_{1-\alpha/2}=2.0538$

The margin of error for the proportion interval is given by this formula:

$ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$ (a)

And on this case we have that $ME =\pm 0.02$ and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}$ (b)

And replacing into equation (b) the values from part a we got:

$n=\frac{0.19(1-0.19)}{(\frac{0.02}{2.0538})^2}=1622.912$

And rounded up we have that n=1623

Part b

The margin of error is given by:

$ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$

So then if w replace the value of n obtained from part a we got:

$ME=2.0538\sqrt{\frac{0.21 (1-0.21)}{1623}}=0.0208$

3 0

3 years ago