SELECT ALL THAT APPLY

Multiple Choice

SELECT ALL THAT APPLY.
-The main properties of the chi-square distribution are that

A) the distributions are positively skewed.
B) chi-square values are always positive.
C) a chi-square of zero means that the variables are completely independent and the observed frequencies in every cell are equal to the corresponding expected frequencies.
D) as number of degrees of freedom decreases,the chi-square distribution becomes more symmetrical.