# Working with normal distribution and probability

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The average hourly wage of workers in a fast food restaurant is $5.85 with a standard deviation of $0.35. Assume that the distribution is normal. If a worker at this fast food restaurant is selected at random, what is the probability that the worker earns more than $6.25 an hour?

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#### Solution Preview

First calculate the z-score

z = (X - mu)/sigma = (6.25 - 5.85)/0.35 = 1.1428

What is the p that z ...

#### Solution Summary

Probability within a normal distribution is determined. The probability that a worker earners more than $6.25 is determined.

$2.49