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.

Question

Quizplus · Accepted Answer

- A) Chi-square distributions are positively skewed, especially with fewer degrees of freedom.- B) Chi-square values are always positive because they are calculated as the sum of squared differences divided by expected values.- C) A chi-square value of zero indicates perfect agreement between observed and expected frequencies, implying independence in a contingency table context.