SOLUTION: Batteries for a radio are thought to be normally distributed with a mean life of 160 hours and a standard deviation of 30 hours. What is the probability that an battery has a li

Question 829024: Batteries for a radio are thought to be normally distributed with a mean life of 160 hours and a standard deviation of 30 hours.
What is the probability that an battery has a life less than 170 hours?

Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

From a normal distribution function,

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