Answer to Question #62107 in Statistics and Probability for kenneth Alex

Question

Let X have a standard gamma distribution with
α=7
. Compute P(X<4 or X>6)
0.912
0.625
0.812
0.713

10 Let X = the time between two successive arrivals at the drive –up window of a bank. If X has a exponential distribution with h=1 ( which is identical to a standard gamma distribution with a=1). Compute the standard deviation of the time between successive arrivals
2
1
3
4