Question Details

For random variable following chi-square distribution



1. If X follow standard normal distribution, then Y X 2 follows,
(i) Normal (ii) Chi-square with 2 d.f.
(iii) Chi-square with 1 d.f. (iv) Nome of these

2. The range of a chi-square variable is,
(i) 0 to n (ii) 0 to (iii) to (iv) None of these

3. For random variable following chi-square distribution,
(i) mean = 2(variance) (ii) 2(mean) = variance
(iii) Mean = variance (iv) None of these

4. The mean of a chi-square random variable with ‘n’ d.f. is,
(i) 2n (ii) n+2 (iii) n (iv) None of these

5. Variance of a chi-square random variable with ‘n’ d.f. is,
(i) 2n (ii) n+2 (iii) n (iv) None of these




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