SOLUTION: 65. Randomly Playing Songs Suppose a compact disc (CD) you just purchased has 13 tracks. After listening to the CD, you decide that you like 5 of the songs. The random feature on y
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Question 908876: 65. Randomly Playing Songs Suppose a compact disc (CD) you just purchased has 13 tracks. After listening to the CD, you decide that you like 5 of the songs. The random feature on your CD player will play each of the 13 songs once in a random order. Find the probability that among the first 4 songs played (a) you like 2 of them; (b) you like 3 of them; (c) you like all 4 of them. Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! Like 5 Dislike 8
a) P = (5C2)(8C2)/(13C4)
b) P = (5C3)(8C1)/(13C4)
c)like 4 in a row: (5C4)(8C0)/(13C4)
