SOLUTION: Lucky downs runs n exact each evening. To win, a better must select the first two horses in order. Seven horses compete in each race. Im being told to use one of the counting rules
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Question 468988: Lucky downs runs n exact each evening. To win, a better must select the first two horses in order. Seven horses compete in each race. Im being told to use one of the counting rules to determine the number of winning pairs of numbers that can occur and to show formula and work...IM STUMPED.. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Lucky downs runs aan exact each evening. To win, a bettor must select the first two horses in order. Seven horses compete in each race. Im being told to use one of the counting rules to determine the number of winning pairs of numbers that can occur and to show formula and work.
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There is only one winning pair.
There are 7C2 = (7*6)/(1*2) = 21 pairs
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Probability of picking the winning pair = 1/21
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Cheers,
Stan H.
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