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z score based probability problem

A drug company believes that the annual demand for a drug will follow a normal random variable with a mean of 900 pounds and a standard deviation of 60 pounds. If the company produces 1000 pounds of the drug, what is the chance (rounded to the nearest hundredth) that it will run out of the drug? Assume that the only way to meet the demand for the drug is to use this year's production number.

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Hi there,

Here is my explanation:

The probability of running out of ...

Solution Summary

The solution provides detailed explanation how to use z value for probability problem.