SOLUTION: An exponential distribution has a mean of 0.5 .Find probability x<1 x<2.5 x>3

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Question 393605: An exponential distribution has a mean of 0.5 .Find probability
x<1
x<2.5
x>3
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
The mean 1%2Falpha of the exponential function is 1/2, and hence alpha+=+2. The density function becomes f%28x%29+=+alpha%2Ae%5E%28-alpha%2Ax%29+=+2e%5E%28-2x%29 for x%3E=0, and f(x) = 0 otherwise.
to 5 decimal places.
to 5 decimal places.
to 6 decimal places.