Like the normal distribution,the exponential density function f(x):
A) is bell-shaped.
B) is symmetrical.
C) approaches infinity as x approaches zero.
D) approaches zero as x approaches infinity.

Question

Quizplus · Accepted Answer

The exponential density function f(x) approaches zero as x approaches infinity, making it different from the normal distribution which has a bell-shaped curve and is symmetrical. The exponential distribution is skewed and is used to model the time between events that occur randomly in a Poisson process.

Like the Normal Distribution,the Exponential Density Function F(x)