Question

For a standard normal distribution, which of the following variables always equals 0? Mu Sigma x z

Answer 1

Answer:

The mean $\mu$ must be always equal to zero to have a standard normal distribution.

Step-by-step explanation:

A Standard Normal Distribution is a case of a normal distribution. The main characteristics that defined a normal distribution as standard, is that the mean is zero and the standard deviation is one.

Therefore, the right answer is the first choice, because the symbol for mean is $\mu$ which is Mu.

Answer 2

The mean will always equal 0.

The variable for the mean is μ