Find number of hours that represent forty percentile

Reference no: EM13147738

The lifetime of zzz batteries are normally distributed with a mean of 270 hours and a standard deviation of 10n hours. Find the number of hours that represent the 40 th percentile.

Reference no: EM13147738

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Find number of hours that represent forty percentile : The lifetime of zzz batteries are normally distributed with a mean of 270 hours and a standard deviation of 10n hours. Find the number of hours that represent the 40 th percentile.

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