SOLUTION: a bag contains 3 red and 5 blue marbles. a marble is drawn and replaced. then a marble is drawn again. find the probability that the marbles are different colors

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Question 306850: a bag contains 3 red and 5 blue marbles. a marble is drawn and replaced. then a marble is drawn again. find the probability that the marbles are different colors
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
3 R-Red
5 B-Blue
8 Total
Red then Blue
P(R)=3/8
P(B)=5/8
P(R, B)=(3/8)(5/8)=15/64
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Blue then Red
P(B)=5/8
P(R)=3/8
P(B,R)=15/64