Suppose x is normally distributed with a mean of 75 and a standard deviation of 4.
Find the 90th percentile.
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Find the 95th percentile.
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Find the 5th percentile.
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Normal Random Variable

A variable whose occurrences are distributed according to the normal distribution.

Percentile

A value on a scale of 100 that indicates the percentage of a distribution that is equal to or below it.

Standard Deviation

A quantification of how spread out or dispersed the values in a collection are, measuring the deviation of data points from their average.