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.
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