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2 years ago

8

Helen is putting together a makeup kit for a friend there are 6 Types of eyeshadow and 3 types of mascara to choose from how man

y different kits can Helen make btw I’m in 7 grade

1 answer:

PtichkaEL [24]2 years ago

6 0

She can make 3 since theres only 3 mascaras? and for each makeup kit she can add two eyeshadows and one mascara

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2 years ago

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3 years ago

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Step-by-step explanation:

Previous concepts

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Solution to the problem

Let X the random variable that represent the heights of a population, and for this case we know the distribution for X is given by:

$X \sim N(\mu,0.08)$

Where $\mu$ and $\sigma=0.08$

Since the distribution for X is normal then the we know that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And the standard error is given by:

$SE= \frac{0.08}{\sqrt{24}}= 0.0163$

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3 years ago