3.69 The life span in hours of an electrical compo-nent is a random variable with cumulative distributionfunctione- 50, x > 0,10,1F(x) = {0.-eleswhere. (a) Determine its probability density function.(b) Determine the probability that the life span of sucha component will exceed 70 hours.

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Answered: 3.69 The life span in hours of an…

A First Course in Probability (10th Edition)

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3.69 The life span in hours of an electrical compo- nent is a random variable with cumulative distribution function e- 50, x > 0, 10, 1 F(x) = {0. - eleswhere.