two cards are drawn without replacement from a standard deck of 52 playing cards. find the probability that both are odd numbers
(aces are considered odd because they have a value of 1 or 11).
1 answer:
Odd cards: Ace, 3, 5, 7 , 9 , Jack, King
7 odd cards per suit, 4 suits = 7 * 4 = 28 odd cards
so 1st card being odd is a 28/52 = 7/13 probability
2nd card would be a 27/51 = 9/17 probability
7/13 x 9/17 = 63/221 probability of both
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Slope intercept form of a line
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