d. What is the probability that the life of the battery is greater than 2 years but less than 4 years? e. What is the var(x)?

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 42E
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PLS ANSWER D AND E ONLY THANK YOU

Problem. Suppose that the lifetime (x) of certain model
with a mean life of 5 years"
a. What is the probability distribution of the life of the car battery ?
b. Plot the probability density function, f(x) versus the lifetime of the car battery (x)
C. What is the probability that the life of the battery will be greater than 2 years?
d. What is the probability that the life of the battery is greater than 2 years but less than 4 years?
What is the var(x)?
car battery follows an exponential distribution
e.
Transcribed Image Text:Problem. Suppose that the lifetime (x) of certain model with a mean life of 5 years" a. What is the probability distribution of the life of the car battery ? b. Plot the probability density function, f(x) versus the lifetime of the car battery (x) C. What is the probability that the life of the battery will be greater than 2 years? d. What is the probability that the life of the battery is greater than 2 years but less than 4 years? What is the var(x)? car battery follows an exponential distribution e.
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