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The life expectancy (in years) of a certain brand of clock radio is a continuous random variable with the probability density function below
f(X) =

The expectancy in years) of a certain brand of clock radio is continuous random variable with the probability density functio



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(A) Find the probability that a randomly selected clock lasts at most 6 years
(B) Find the probability that a randomly selected clock radio lasts from 6 to 10 years
(C) Graph y=f(x) for A, 10 and show the shaded region lor part (A)

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a) probab, City for at most 7 years 1 1 2 421 2 - 2 2 1 2 2 2 2 2 9 2) 0-778 b) probability between 7&q years 22 2 2 2 + 2 2

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