If K denotes the degree of freedom, then the variance of Chi-square distribution is? - IQ786

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If K denotes the degree of freedom, then the variance of Chi-square distribution is?

If K denotes the degree of freedom, then the variance of Chi-square distribution is?

k/2

k-1

k-2

2k

Explanation

The variance of a Chi-square distribution with k degrees of freedom is 2k.
This means that as the degrees of freedom (k) increase, the variance of the Chi-square distribution also increases.
It indicating greater spread or dispersion in the data.