Posted by rency on Tuesday, October 27, 2009 at 11:47pm.
Theres 26 black cards in a deck of cards.
Half of the deck of cards will remain red/black.
1/2 of the cards are shown as black cards.
prob of first card black = 13/52
prob of second card also black = 12/51
so prob of 2 black cards
= (13/52)(12/51)
= 1/17
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