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01-04-2017
Mathematics

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A bag contains 5 red marbles , 2 blue marbles, 4 white marbles, and 1 yellow marble. if 2 marbles are chosen in a row , without replacement, what is the probability of choosing 2 white marbles.

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Аноним Аноним

01-04-2017

P of 1st white marble = 4/ 12

and P of 2nd white in a row = 3 /11

total = ( 4/12) * ( 3/11)
= 1/11

hope it helped

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