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A drawer contains 3 white b***s and 6 black b***s. Two b***s are drawn out of the box at random. What is the probability that they both are white?

 Apr 5, 2016

Best Answer 

 #1
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the probability would be 1/3

 Apr 5, 2016
 #1
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Best Answer

the probability would be 1/3

Guest Apr 5, 2016
 #2
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No, i do not think 1/3 is correct, but thanx for trying

 Apr 5, 2016
 #3
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2/9    cheeky

 Apr 5, 2016
edited by Guest  Apr 5, 2016
 #4
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Assuming that we are drawing without replacement, we have :

 

P(Both White)  = [Prob of white on first draw] * [ Prob of white on second draw]  =

 

[3/9] * [2/8]   =  6/72    = 1/12

 

 

cool cool cool

 Apr 5, 2016

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