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3 years ago

CAN I GET SOME HELP PLEASE? THIS IS IMPORTANT!

Mathematics

1 answer:

MrRa [10]3 years ago

3 0

$6469.177
I could be wrong but I'm pretty sure that is right.

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The proportion of students at a college who have GPA higher than 3.5 is 19%. a. You take repeated random samples of size 25 from

melomori [17]

Answer:

$\mu_{\hat{p}}=0.19$

$\sigma_{\hat{p}}=0.0785$

Step-by-step explanation:

We know that the mean and the standard error of the sampling distribution of the sample proportions will be :-

$\mu_{\hat{p}}=p$

$\sigma_{\hat{p}}=\sqrt{\dfrac{p(1-p)}{n}}$

, where p=population proportion and n= sample size.

Given : The proportion of students at a college who have GPA higher than 3.5 is 19%.

i.e. p= 19%=0.19

The for sample size n= 25

The mean and the standard error of the sampling distribution of the sample proportions will be :-

$\mu_{\hat{p}}=0.19$

$\sigma_{\hat{p}}=\sqrt{\dfrac{0.19(1-0.19)}{25}}\\\\=\sqrt{0.006156}=0.0784601809837\approx0.0785$

Hence , the mean and the standard error of the sampling distribution of the sample proportions :

$\mu_{\hat{p}}=0.19$

$\sigma_{\hat{p}}=0.0785$

8 0

3 years ago

Pls help me with this

Illusion [34]

Answer:

No solutions.

Step-by-step explanation:

Both equations have the same slope, but are separated by virtue of their different values of b, the y-intercept. The same slope means they are parallel lines. Since the y-intercept is different, they do not overlap.

As they say, "Parallel line have a lot in common. Too bad they'll never meet."

See attachment.

7 0

2 years ago

Solve x3= 27. A = 13 B. x= 5.2 C. x=3 D. x=9

scoray [572]

Answer:

x³=27

cuberoot√x³=cuberoot of 27

x=3

3 0

3 years ago

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X-intercepts of the graph of y = = 3x2 + 2x – 2?

olga_2 [115]

Answer:

(-1.215,0) (0.549,0)

hope this helps

7 0

2 years ago

A card is drawn from a standard 52-card deck. What is the probability that the card is a red 8, given that the card is an 8?

crimeas [40]

probability that the card is a red 8
=
2 out of 52 or 1 out of 26

hope it helps

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3 years ago

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