Which of the following accurately describes the chi-square distribution?

Which of the following accurately describes the chi-square distribution?



a. Symmetrical with a mean of zero.
b. Positively skewed with all values greater than or equal to zero.
c. Symmetrical with a mean equal to n - 1.
d. Negatively skewed with all values greater than or equal to zero.


Answer: b. Positively skewed with all values greater than or equal to zero.


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