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You draw nine cards from a standard deck of cards. What is the probability that (A.) four or more will be red (B). exactly two or three will be red (C). two or fewer will be red, and (D). exactly five will be red?

May 13th, 2015

You draw nine cards from a standard deck of cards. What is the probability that 

(A.) four or more will be red= 1- 26/52*25/51*24/50*23*49= 1-0.06= 0.04

 (B). exactly two or three will be red= (26/52*25/51) +(26/52*25/51*24/50)= 0.36

 (C). two or fewer will be red, and = 26/52*25/51 + 26/52= 0.745

(D). exactly five will be red?= 26/52*25/51*24/50*23*49*22/48= 0.03

May 13th, 2015

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May 13th, 2015
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May 13th, 2015
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