If the random variable X is exponentially distributed, then which of the following statements best describes the mean of X?
A) The mean of $X$ will be greater than the standard deviation of $X$.
B) The mean of $X$ will be smaller than the standard deviation of $X$.
C) The mean of $X$ will equal the standard deviati on of $X$.
D) None of these choices are correct.

Question

If the random variable X is exponentially distributed, then which of the following statements best describes the mean of X? 
A) The mean of $X$ will be greater than the standard deviation of $X$.
B) The mean of $X$ will be smaller than the standard deviation of $X$.
C) The mean of $X$ will equal the standard deviati on of $X$.
D) None of these choices are correct.

Quizplus · Accepted Answer

For an exponentially distributed random variable, the mean is equal to the standard deviation.

If the Random Variable X Is Exponentially Distributed, Then Which XXX

If the Random Variable X Is Exponentially Distributed, Then Which $X$