Question

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 function below = 27x22x20 otherwise (A) Find the probability that a domly selected clock lasts at most 6 years (B) Find the probability that a randomly selected clockradio lasts from to 10 years IC) Graph y = fx) for 1010and show the shaded region for part (A)

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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)

Answer 1

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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 2 7. +2) > po 2 Catal = ไซ Gat2)/ 27 0.020 C) option c ast 2