The probability density function for an exponential random variable x has a graph called a bell
curve.

Question

Quizplus · Accepted Answer

The probability density function for an exponential random variable x is not a bell curve but rather a declining curve that starts from a maximum value at x=0 and decreases as x increases, never touching the x-axis. The bell curve describes the normal distribution, not the exponential distribution.

The Probability Density Function for an Exponential Random Variable X