Find relative frequency of classical cds with playing time

Reference no: EM13142998

The playing time X of classical CDs has the normal distribution with a mean of 54 and a standard deviation of 5; the N(54, 5) distribution. What is the relative frequency of classical CDs with a playing time of X less than 49 minutes? That is, find the relative frequency of the event X < 49.

Reference no: EM13142998

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