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Probability
dillka
Oct 26, 2008, 11:47 AM
Select a card from the deck. Place the card back in the deck. Select another card. What is the probability that both cards will be black?
dillka
Oct 26, 2008, 11:48 AM
Would it be 13/26 or 50%?
galactus
Oct 26, 2008, 01:07 PM
No. There are 26 black cards in a 52 card deck. You put it back so there are 52 cards again to choose from. So, you have 26/52 again.