A,B and C

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) = 2/ (x + 2)2 if x20 otherwise "A) Find the probability that a randomly selected clock lasts at most 5 years B) Find the probability that a randomly selected clock radio lasts from 5 to 11 years. (C) Graph y = f(x) for [0, 11] and show the shaded region for part (A) (A) What is the probability that a clock will last no more than 5 years? (Type a decimal rounded to three decimal places as needed.)