Given that z is a standard normal random variable,a negative value of z indicates that:
A) The value z is to the left of the mean.
B) The value z is to the right of the median.
C) The standard deviation of z is negative.
D) The area between zero and z is negative.
E) The probability associated with z is negative.

Question

Quizplus · Accepted Answer

A negative value of z indicates that the value of z is to the left of the mean. A positive value of z indicates that the value of z is to the right of the mean. The mean of a standard normal distribution is zero, so if z is negative, it means that the value is below the mean.

Given That Z Is a Standard Normal Random Variable,a Negative