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2 years ago

13

Alice has a basket containing 6 red socks, 4 blue socks, and 12 white socks. Find the theoretical probability that Alice will ra

ndomly select a red sock from the basket

1 answer:

mrs_skeptik [129]2 years ago

7 0

There is a 42.22% chance

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The Convention Society Brought and planted 45 cherry trees.Each Tree Cost $367.Which was the total cost of planting the trees?

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$16,515

367×45= 16, 515

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2 years ago

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Determine whether -6 is a solution of the inequality.<br> x = 6<br> Yes<br> No

const2013 [10]

Answer:

no

Step-by-step explanation:

x must be 6

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2 years ago

A market surveyor wishes to know how many energy drinks teenagers drink each week. They want to construct a 98% confidence inter

frosja888 [35]

Answer:

The minimum sample size required to create the specified confidence interval is 1024.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.98}{2} = 0.01$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.01 = 0.99$ , so $z = 2.327$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

What is the minimum sample size required to create the specified confidence interval

This is n when $M = 0.08, \sigma = \sqrt{1.21} = 1.1$ .

$M = z*\frac{\sigma}{\sqrt{n}}$

$0.08 = 2.327*\frac{1.1}{\sqrt{n}}$

$0.08\sqrt{n} = 2.327*1.1$

$\sqrt{n} = \frac{2.327*1.1}{0.08}$

$(\sqrt{n})^{2} = (\frac{2.327*1.1}{0.08})^{2}$

$n = 1024$

The minimum sample size required to create the specified confidence interval is 1024.

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3 years ago

You have just arrived at summer camp. And your cabin, the counselor has each camper perform the super secret handshake

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2 years ago

21) Find the area of a parallelogram with base of 16<br> Inches and a height of 11 inches

nydimaria [60]

Answer:

176 in²

Step-by-step explanation:

The area (A) of a parallelogram is calculated as

A = base × height = 16 × 11 = 176 in²

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2 years ago