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What is the probability of drawing a second white card, given that the first card is white?

 May 16, 2018
 #1
avatar+101952 
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P (two white cards)  = P(white on first draw) * P (white on second draw)

 

14 / 95   =   2 / 5   *   P (white on second draw)

 

Multiply both sides by 5/2

 

(5/2)(14/95)   = P (white on second draw)   = 70 / 190   =   7 / 19

 

 

 

cool cool cool

 May 16, 2018

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