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In a box of 5 balls, 2 are red and 3 are blue. Two balls...

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Question

Statistics

In a box of 5 balls, 2 are red and 3 are blue. Twoballs are randomly selected (without replacement). Let X be thenumber of red balls in the two selected balls.

a. Find the probability distribution of X (i.e., listall possible values of X and their correspondingprobabilities).

b. Find the expected value and the standard deviationof X.

Answer & Explanation Solved by verified expert
4.3 Ratings (897 Votes)
At the start we have 5 balls out of which 2 are red and 3 areblueTherefore the probability of red ball 25    See Answer
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