0, x < 0 Find the probability that a telephone call selected will last beyond 5 minutes.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Write your answer correct to 4 decimal places. *
In a certain city, the probability density function for x minutes to be the length of a
telephone call selected at random is given by
x20
f(x) = }3
0,
x < 0
Find the probability that a telephone call selected will last beyond 5 minutes.
Transcribed Image Text:Write your answer correct to 4 decimal places. * In a certain city, the probability density function for x minutes to be the length of a telephone call selected at random is given by x20 f(x) = }3 0, x < 0 Find the probability that a telephone call selected will last beyond 5 minutes.
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