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
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
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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5f0cb361-ace3-443e-bafb-cce91162f6f7%2F280a50b0-7a49-4296-bccf-f55adb7a94ad%2Fv5krdlg_processed.png&w=3840&q=75)
Transcribed Image Text: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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