Question 242422
Consider the experiment of drawing two cards without replacement from an ordinary deck of 52 playing cards. 
#1. What are the odds in favor of drawing a spade and a heart? 
Coin question...
P(spade and heart without replacement) = (13/52)(12/51) = 0.0588
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P(not(spade and heart)) = (1-0.0588) = 0.9412
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Odds in favor = 0.0588/0.9412 = 0.0625
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Odds in favor are approximately 1:16
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What are the odds in favor of getting at least one head in three successive flips of a coin?
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P(at least one head in three) = 1-P(no heads in three) = 1-(1/8) = 7/8
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Odds = (7/8)/(1/8) = 7:1
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Cheers,
Stan H.