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Probability – 31

31. A die is tossed twice. Getting a number greater than 4 is considered a success. Then the variance of the probability distribution of the number of successes is :

(a) 2/9
(b) 4/9
(c) 1/27
(d) none of these

Answer : (b)

Explanation : No answer description available for this question. Let us discuss.

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