Asked by ygmomma
in a certain lottery, 3 numbers between 1 and 9 inclusive are drawn. These are the winning numbers. How many different selections are possible?
Answers
Answered by
drwls
Does the order of draw matter? (Usually not)
Can a number be drawn more than once? (Usually not)
In the "usual" lottery situation, the answer for this case is
9!/(6!*3!) = 9*8*7/(1*2*3) = 84
Can a number be drawn more than once? (Usually not)
In the "usual" lottery situation, the answer for this case is
9!/(6!*3!) = 9*8*7/(1*2*3) = 84
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