Answered: The probability density function of the…

The probability density function of the life span of a battery is given by the function below, where t is in years. -{: | 1.25e- 1.25t ift >0 f (t) = ift < 0

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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Question

TOPIC: Continuous Probability Distributions

a.) What is the probability that a battery will have a life span between 1.5 and 4 years?
b.) Determine the mean value of the life span of the batteries.

The probability density function of the life span of a battery is given by the function below, where t
is in years.
if t >0
if t < 0
S 1.25e¯1.25t
f (t) = {0

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