SOLUTION: I appreciate any help I can get on this chance experiment problem. Please Help! Jar of marbles initially contains 5 blue and 7 purple balls. Each time a marble is drawn, the col

Question 1161368: I appreciate any help I can get on this chance experiment problem. Please Help!
Jar of marbles initially contains 5 blue and 7 purple balls. Each time a marble is drawn, the color is noted and it is then replaced in jar urn along with 2 other balls of the same color (for example, John draws a blue marble on draw one, then places the blue marbles he selected along with two other blue marbles back in the jar).
a. What is the probability that the first 2 marbles drawn by John are blue and the next 2 are purple?
b. What is the probability that of the first 4 marbles drawn, exactly 2 are blue?
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!
duplicate; answered
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