SOLUTION: Hi, I need some probability help please. 1) A bag contains 5 red marbles, 3 white marbles, and 4 blue marbles. what is the probability of randomly selecting a red marble, settin

Question 1053354: Hi, I need some probability help please.
1) A bag contains 5 red marbles, 3 white marbles, and 4 blue marbles. what is the probability of randomly selecting a red marble, setting is aside, and then randomly selecting another red marble from the bag?
2)A game has 6 colored playing pieces. They are red, yellow, green, blue, purple, and white. You and a friend pick your game piece without looking. What is the probability that your friend picks the blue piece and you pick the yellow piece?

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
1) 12 marbles: 5 red marbles, 3 white marbles, and 4 blue marbles.
w/o replacement
P(R,R) = (5/12)(4/11)
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2) 6 colored playing pieces: 1red, 1yellow, 1green, 1blue, 1purple, and 1white
w/o replacement
P(B,Y) = (1/6)(1/5)
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