What can be said about the expected value and standard deviation of an exponential distribution?
A) The expected value is equal to the standard deviation.
B) The expected value is equal to the square of the standard deviation.
C) The expected value is equal to the reciprocal of the standard deviation.
D) The expected value is equal to the square root of the standard deviation.

Question

Quizplus · Accepted Answer

The expected value of an exponential distribution is equal to the reciprocal of the rate parameter (λ), which is also the standard deviation. Therefore, the expected value is equal to the standard deviation in an exponential distribution.

What Can Be Said About the Expected Value and Standard