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3 years ago

7

A department store has average daily sales of $29,876.76. The standard deviation of sales is $1000. On Tuesday, the store sold $

34,893.71 worth of goods. Find Tuesday's z score.

2 answers:

umka2103 [35]3 years ago

4 0

Answer with explanation:

Mean $\Bar X$ = $ 29,876.76

Standard Deviation $\sigma$ = $1000

$\mu$ =$34,893.71

Z-Score Formula

$Z_{score}=\frac{\Bar X -\mu}{\sigma}\\\\Z_{score}=\frac{29876.76-34893.71}{1000}\\\\=\frac{-5016.95}{1000}\\\\=-5.01695\\\\=-5.02$

So, Tuesday Z-Score= -5.02

Furkat [3]3 years ago

3 0

This should be the correct answer. i hope this helps you out.

have a nice and wonderful day :)

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dexar [7]

Answer:

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Step-by-step explanation:

Given:

Suppose X, Y, and Z are random variables with the joint density function,

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