Which of the following is not a property of the chi-square distribution?
a. the mean of the chi-square distribution is 0.
b. the chi-square distribution is not symmetric.
c. the values of chi-square can be zero or positive, but they cannot be negative.
d. the chi-square distribution is different for each number of degrees of freedom, df equals n minus 1.

A) The mean of the chi-square distribution is 0

A) is not a property of chi square distribution.

Step-by-step explanation:

We have to find the properties of a chi square test.

A) False

The mean of a chi square distribution is equal to the degree of freedom.

B) True

The chi-square distribution is non symmetric.

C) True

The chi square value can be zero and positive.

It can never be negative because it is based on a sum of squared differences .

D) True

The chi-square distribution is different for each number of degrees of freedom.

When we are working with a single population variance, the degree of freedom is n - 1.

hows it hangin lol

step-by-step explanation:

-2

7 - 9 = -2

reversed:

-2 + 9 = 7