SOLUTION: A jar contains seven blue marbles and five red marbles. Suppose you choose a marble at​ random, and do not replace it. Then you choose a second marble. Find the probability of th

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Question 1155110: A jar contains seven blue marbles and five red marbles. Suppose you choose a marble at​ random, and do not replace it. Then you choose a second marble. Find the probability of the following event.
Both of the selected marbles are red.

Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
There are 7 +5 = 12 marbles in the jay
:
Probability of both marbles selected are red = (5/12) * (4/11) = 5/33
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