If the mean of a normal distribution is negative,
A) the standard deviation must also be negative.
B) the variance must also be negative.
C) a mistake has been made in the computations, because the mean of a normal distribution cannot be negative.
D) none of these alternatives is correct.

Question

Quizplus · Accepted Answer

None of the options are correct. The mean of a normal distribution can be negative, zero, or positive. The standard deviation and variance must be positive, as they represent measures of spread around the mean.

If the Mean of a Normal Distribution Is Negative