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A deck of cards contains 6 black cards and 6 red cards. The first card drawn is not replaced before drawing the second card.

What is the probability of selecting a black card followed by a red card?

Choices

1/6

5/6

3/11

11/36

 Dec 19, 2018
 #1
avatar+98044 
+3

P(drawing a black card 1st) = 6/12   = 1/2

P(drawing a red card second) = 6/11

 

So....the probability is

 

(1/2) (6/11)  =   6 / 22   =  3 / 11

 

 

cool cool cool

 Dec 19, 2018

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