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Find the standard deviation of the lifetimes

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Reference no: EM132464029

Problem: Suppose that under severe operating conditions the lifetime, in months, of a transistor is exponentially distributed with parameter λ= 0.2

(a) Find the probability that such a transistor is between 4 and 10 months.

(b) Find the mean lifetime.

(c) Find the median lifetime.

(d) Find the standard deviation of the lifetimes.

(e) Find the 25th percentile of the lifetimes.

Reference no: EM132464029

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