Given that Z is a standard normal random variable, the mean of Z is:
A)smaller than the median.
B)larger than the mode.
C)always equal to zero.
D)always smaller than zero.

Question

Quizplus · Accepted Answer

The mean of a standard normal random variable is always equal to zero. This is a well-known property of standard normal distribution as its bell-shaped curve is symmetric around the mean. Therefore, option C is the correct answer. Options A, B, and D are incorrect as they do not align with the properties of a standard normal distribution.

Given That Z Is a Standard Normal Random Variable, the Mean