5000 hours and a standard deviation of 100 hours. What is the probability that the average
lifetime of 400 components is less than 5012 hours?
Tuesday, December 29, 2015
4.23. The lifetime of a certain electronic component is a random variable with the expectation of 5000 hours and a standard deviation of 100 hours. What is the probability that the average lifetime of 400 components is less than 5012 hours?
4.23. The lifetime of a certain electronic component is a random variable with the expectation of
5000 hours and a standard deviation of 100 hours. What is the probability that the average
lifetime of 400 components is less than 5012 hours?
5000 hours and a standard deviation of 100 hours. What is the probability that the average
lifetime of 400 components is less than 5012 hours?
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