The shelf life, in days, for bottles of a certain
Chapter , Problem 2.6(choose chapter or problem)
The shelf life, in days, for bottles of a certain prescribed medicine is a random variable having the density function f(x) = 20,000 (x+100)3 , x> 0, 0, elsewhere. Find the probability that a bottle of this medicine will have a shell life of (a) at least 200 days; (b) anywhere from 80 to 120 days.
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