Question: answer all questions with explanation Problem #5: Suppose that the distribution of the lifetime of a car battery produced by a certain car company is

answer all questions with explanation

Problem #5: Suppose that the distribution of the lifetime of a car battery produced by a certain car company is well approximated by a normal distribution with a mean of 1000 hours and variance 104. What is the approximate probability that a batch of 100 car batteries will contain at least 18 whose lifetimes are less than 909 hours? Problem #5: : answer correct to 4 decimals [ Just Save I I Submit Problem #5 for Grading

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