Let X be the failure time (in months) of a certain insulating material. The distribution

Chapter 3, Problem 3.4-20

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QUESTION:

Let X be the failure time (in months) of a certain insulating material. The distribution of X is modeled by the pdf f(x) = 2x 502 e(x/50)2 , 0 < x < . Find (a) P(40 < X < 60), (b) P(X > 80).

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QUESTION:

Let X be the failure time (in months) of a certain insulating material. The distribution of X is modeled by the pdf f(x) = 2x 502 e(x/50)2 , 0 < x < . Find (a) P(40 < X < 60), (b) P(X > 80).

ANSWER:

Step 1 of 3

Given:

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