# Question: The shelf life in days for bottles of a certain

The shelf life, in days, for bottles of a certain prescribed medicine is a random variable having the density function 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 120days.

(a) At least 200 days;

(b) Anywhere from 80 to 120days.

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