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, which means that it has a long right tail and is skewed to the right. It is not bell-shaped or symmetrical. The density function does not approach infinity as x approaches zero, but instead starts at zero and increases as x increases.

The Exponential Density Function F(x)