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Q. 1.  State which the following are not the probability distributions of a random variable. Give reasons for your answer.

            (i) 

            

Answers (1)

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As we know the sum of probabilities of a probability distribution is 1.

Sum of probabilities =0.4+0.4+0.2=1

\therefore The given table is the probability distribution of a random variable.

Posted by

seema garhwal

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