SOLUTION: In a certain lottery, 4 numbers between 1 and 10 inclusive are drawn. These are the winning numbers. How many different selections are possible? Assume that the order in which th
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Question 309702: In a certain lottery, 4 numbers between 1 and 10 inclusive are drawn. These are the winning numbers. How many different selections are possible? Assume that the order in which the numbers are drawn is not important.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
In a certain lottery, 4 numbers between 1 and 10 inclusive are drawn. These are the winning numbers. How many different selections are possible? Assume that the order in which the numbers are drawn is not important.
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# of sets of 4 numbers: 10C4 = (10*9*8*7)/(1*2*3*4) = 210
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# of winning sets of 4: 4! = 4*3*2*1 = 24
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Cheers,
Stan H.
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