# Probability

Discussion in 'DAT Discussions' started by Awuah29, Mar 11, 2007.

1. ### Awuah29 Christian predent 7+ Year Member

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Take a look at this. Anyone knows how to solve this??

Two cards are drawn random from an ordinary deck of 52 cards. Determine the probability that both cards are aces if

a) the first card is replaced before the second card is drawn.

b) the first card is not replaced before the second card is drawn

Answer for a= 0.006 b) 0.005

How do they get this??

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2. ### Streetwolf Ultra Senior Member Dentist 7+ Year Member

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a) 4/52 * 4/52 = 0.006
b) 4/52 * 3/51 = 0.005

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