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3 years ago

11

Mary’s grade on her research paper counts for 20% of her final grade in english. if there are a total of 400 points possible how

many points can she earn for her research paper

1 answer:

sweet-ann [11.9K]3 years ago

8 0

Answer:

80 points

Step-by-step explanation:

400 x 0.20% = 80

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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 :

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

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

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3 years ago

How many solutions does the following system have?<br> y= 5x + 8<br> y = 5x + 3

NARA [144]

Answer:

This system has no solutions.

Step-by-step explanation:

If we try to solve:

5x + 8 = 5x + 3
5x + 8 - 3 = 5x
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Since there are no x values left over and the remaining solution is zero, there is no solution for this equation.

Hope this helps!!

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2 years ago

42 is 6 times as many as

egoroff_w [7]

Wouldnt it be 7 bc 7*6 is 42

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2 years ago

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P = 240 – 172<br>g=<br>9 x 8/-24<br><br>Work out the value of p×q

mel-nik [20]

Step-by-step explanation:

I hope I got it right and I hope this helps

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3 years ago

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Licemer1 [7]

Answer:

10 hours (I am not positive)

Step-by-step explanation:

We first want to find the volume of pool which is 30 x 18 x 4 = 2160.

Then you are going to divide by 216 to find how many hours it takes to drain the whole pool. (I'm not that big of an expert)

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3 years ago