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Statistics: Normal Distribution for Eye Surgical Procedure

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A health care analyst would like to know that if the duration of a given eye surgical procedure has a normal distribution with a mean of 240 minutes and a standard deviation of 40 minutes, what percent of procedures of this type lasts between 220 and 260 minutes?

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This solution contains step-by-step calculations to determine the percentage of eye surgical procedures that last between 220-260 minutes.

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