The average lifespan of XYZ's phones is 6 years. Each phone lifespan is exponentially distributed. a. Find the rate parameter. b. Graph the probability density function. c. How likely is it that a cellphone will fail in 4 years? d. How long will a cellphone last more than 11 years? e. How likely is it that the cellphone will endure 5-8 years?
The average lifespan of XYZ's phones is 6 years. Each phone lifespan is exponentially distributed. a. Find the rate parameter. b. Graph the probability density function. c. How likely is it that a cellphone will fail in 4 years? d. How long will a cellphone last more than 11 years? e. How likely is it that the cellphone will endure 5-8 years?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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