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ConceptMean of a Random Variable

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#### Question

Five bad oranges are accidently mixed with 20 good ones. If four oranges are drawn one by one successively with replacement, then find the probability distribution of number of bad oranges drawn. Hence find the mean and variance of the distribution.

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#### Reference Material

Solution for question: Five bad oranges are accidently mixed with 20 good ones. If four oranges are drawn one by one successively with replacement, then find the probability distribution of number of bad oranges drawn. Hence find the mean and variance of the distribution. concept: Mean of a Random Variable. For the courses CBSE (Arts), CBSE (Commerce), CBSE (Science)