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4 years ago

PLEASE SOLVE THESE 60 POINTS!!!! I am so tired... Questions are in the pictures.

Mathematics

1 answer:

solniwko [45]4 years ago

7 0

Answer:

bottom right

Step-by-step explanation:

First, graph the line x=2 (a vertical line). It is a dashed line because it isn't equal to 2, eliminating the top right and bottom left. Then, shade to the right of the line because x needs to be greater than 2, eliminating the top left.

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What is the answer to this?

tensa zangetsu [6.8K]

The answer is b!!!!!

6 0

3 years ago

Rosetta wants to estimate the percentage of people who rent their home. She surveys 250 individuals and finds that 48 rent their

Andreas93 [3]

Answer:

$0.192 - 1.645\sqrt{\frac{0.192(1-0.192)}{250}}=0.151$

$0.192 + 1.645\sqrt{\frac{0.192(1-0.192)}{250}}=0.233$

Step-by-step explanation:

Information given

$X= 48$ number of people who rent their home

$n= 250$ represent the sample size

$\hat p =\frac{48}{250}= 0.192$ represent the proportion of people who rent their home

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 90% of confidence, our significance level would be given by $\alpha=1-0.90=0.1$ and $\alpha/2 =0.05$ . And the critical value would be given by:

$z_{\alpha/2}=\pm 1.645$

The confidence interval for the mean is given by the following formula:

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

If we replace the values obtained we got:

$0.192 - 1.645\sqrt{\frac{0.192(1-0.192)}{250}}=0.151$

$0.192 + 1.645\sqrt{\frac{0.192(1-0.192)}{250}}=0.233$

3 0

3 years ago

Statistics Question Q9

Tanzania [10]

Answer:

D. is the correct one.........

6 0

2 years ago

Read 2 more answers

The trail to a waterfall is 4 1/5 miles long .The trail to an overlook is 1 2/3 times as long as the trail to the waterfall. Whi

erica [24]

I believe the correct answer to your question would be choice B. The trail is no more than 6 miles long.

4 0

4 years ago

If you used 3/4 of the blue paint to make flames on one of the cars, and need 7 3/4 pints of blue paint to paint another car, wh

ki77a [65]

3/4 of 7 pints were used. of, in this case, means to multiply. 3/4 x 7= 21/4= 5 and 1/4 pints. Now we subtract 5 and 1/4 (because this is how much was used) from 7. 7- 5 and 1/2 = 1 and 1/2

If you have questions, feel free to ask.

5 0

3 years ago