The life span of a battery is normally distributed with a

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The life span of a battery is normally distributed, with a mean of 2000 hours and a standard deviation of 30 hours.

A) What percent of batteries have a life span that is more than 2065 hours?

B) Would it be unusual for a battery to have a life span that is more than 2065 hours?

Reference no: EM13580402

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