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3 years ago

4.08 dived by 2 show work

Mathematics

2 answers:

Ber [7]3 years ago

5 0

4.08/2= 2.04 is the answer

Lyrx [107]3 years ago

3 0

Answer:

$4.08 \div 2 \\ 2.08 \: answer$

please mark me brainliest please

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A researcher wants to estimate the percentage of all adults that have used the Internet to seek pre-purchase information in the

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Answer:

The sample size is 1875.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

Sampling error of 0.03.

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25% of all adults had used the Internet for such a purpose

This means that $\pi = 0.25$

What is the sample size

The sample size is n. So

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$0.03 = 3\sqrt{\frac{0.25*0.75}{n}}$

$0.03\sqrt{n} = 3\sqrt{0.25*0.75}$

Simplifying by 0.03 both sides

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Hey There!

We can find the answer by using proportions of the other sides

What i mean by this is if ADs proportion to AE is the same as BDs proportion to EC then DE is proportional to BC

6/4=1.5

9/6=1.5

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3 years ago

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First find the probability of each color being drawn.

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Probability of a red marble being drawn --> $\frac{6}{13}$

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Part a :

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Part d :

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