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The _________ of the Chi-squared distribution is twice the degrees of freedom.

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The _________ of the Chi-squared distribution is twice the degrees of freedom.

(a) variance

(b) standard deviation

(c) mode

(d) none of the mentioned

The question was asked in an international level competition.

Origin of the question is Likelihood topic in portion Statistical Inference and Regression Models of Data Science

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Best answer
The correct option is (a) variance

To explain: The mean of the Chi-squared is its degrees of freedom.

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