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Old 07-28-2007   #1
Dr. J
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Default Probability questions?

What's the probability of drawing a king or a red card from a standard deck of cards?
 
Old 07-28-2007   #2
asa clark
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16 out of 52
 
Old 07-28-2007   #3
starcraftruinedmylife
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15/26
 
Old 07-28-2007   #4
George B
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every second card is red so 50% (26/52) chance of drawing a red card.there are 4 kings in a deck of 52 cards, so the chances of drawing a king are 7.7% (4/52=1/13).but 2 of the kings are red, so you have to subtract this from the total, otherwise you are double counting the probaility:3.8% (2/52=1/26)so the answer is p(drawing red)+p(drawing king)-p(drawing red king) = 53.9%.
 
 

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