Like that of the Student t distribution the shape of the chi

Like that of the Student t distribution, the shape of the chi-squared distribution depends on:

A. the population variance

B. the population mean

C. All of the following: the population variance the number of its degrees of freedom the population mean

D. the number of its degrees of freedom

Solution

Like that of the Student t distribution, the shape of the chi square distribution depends on the number of its degrees of freedom.

Chi square distribution is not symmetric. As the number of degrees of freedom increases, the chi-square distribution becomes more symmetric.

Correct option is (D).