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2 years ago

Please answer this question

Mathematics

1 answer:

Virty [35]2 years ago

6 0

Answer:

1. 38 = 1 • 38

2. 38 = 2 • 19

Step-by-step explanation:

2. 38 ÷ 19 = 2

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3 years ago

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The math club made a total of $1155 from selling 210 T-shirts. How much did they sell each T-shirt for?

worty [1.4K]

Answer:

$5.50

Step-by-step explanation:

We need to divide the total amount earned by the number of t-shirts

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2 years ago

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

Select the correct answer.

lorasvet [3.4K]

Add 5 to both sides of the equation.
x=-14+5
Add -14 and 5.
x=-9

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2 years ago

Find the circumference of the circle. Use 3.14 for pi

IgorLugansk [536]

Answer:

The circumfrence is 14

Step-by-step explanation:

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