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# Solution - An Urn Contains 3 White and 6 Red Balls. Four Balls Are Drawn One by One with Replacement from the Urn. Find the Probability Distribution of the Number of Red Balls Drawn. Also Find Mean and Variance of the Distribution. - Mean of a Random Variable

ConceptMean of a Random Variable

#### Question

An urn contains 3 white and 6 red balls. Four balls are drawn one by one with replacement from the urn. Find the probability distribution of the number of red balls drawn. Also find mean and variance of the distribution.

#### Solution

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#### APPEARS IN

2015-2016 (March) Delhi Set 2
Question 23 | 6 marks
2015-2016 (March) Delhi Set 1
Question 25 | 6 marks
2015-2016 (March) Delhi Set 3
Question 21 | 6 marks

#### Reference Material

Solution for question: An Urn Contains 3 White and 6 Red Balls. Four Balls Are Drawn One by One with Replacement from the Urn. Find the Probability Distribution of the Number of Red Balls Drawn. Also Find Mean and Variance of the Distribution. concept: Mean of a Random Variable. For the courses CBSE (Arts), CBSE (Commerce), CBSE (Science)
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