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Question: The lifespan of a car battery averages six years. Suppose the battery lifespan follows an exponential distribution.

(a) Find the probability that a randomly selected car battery will last more than four years.

(b) Find the variance and the 95th percentile of the battery lifespan.

(i) Find the probability the battery will last an additional five years.

(ii) How much longer is this battery expected to last?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92577927

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