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An urn contains 6 red, 6 blue and 2 green marbles. If 2 marbles are picked at random, what is the probability that both are red?

 Jul 19, 2022
 #1
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Assuming without replacement   the probability is

 

6  / 14  *    5 / 13     =    3/7 *5/13   =   15 / 91

 

cool cool cool

 Jul 19, 2022

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