Question

Suppose a number of months before your car battery needs to be replaced follow the exponential distribution with a mean of 50.0 months.
a. What is the probability that your car battery will need to be replaced within 24 months?
b. What is the probability that your car battery will need to be replaced within 30 to 60 months?
c. What is the probability that your car battery will need to be replaced after 84 months?
d. Use Excel to verify the results from parts a, b, and c.
e. What is the standard deviation for this distribution?


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  • CreatedJuly 17, 2015
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