The lifetime of a certain transistor in a certain

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The lifetime of a certain transistor in a certain application has mean 900 hours and standard deviation 30 hours. Find the mean and standard deviation of the length of time that four transistors will last.

Reference no: EM13639492

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The lifetime of a certain transistor in a certain : the lifetime of a certain transistor in a certain application has mean 900 hours and standard deviation 30 hours. find
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