The time it takes to completely clean an office building follows an exponential distribution with a mean of 135 minutes. What is the probability of cleaning an office building in 135 minutes or less?
a. .6321
b. .50
c. .3679
d. 1.00
Answer: a. .6321
Statistics MCQ
Statistics
The time it takes to completely clean an office building follows an exponential distribution with a mean of 135 minutes. What is the probability of cleaning an office building in 135 minutes or less?
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