Question 998085: In how many ways can nine students be selected randomly from a class of 40 students?
Answer by solver91311(24713)   (Show Source):
You can put this solution on YOUR website!
It depends on whether order matters, that is to say: Is the selection {Alice, Bob, Charles, David, Elizabeth, Fred, Gayle, Herman, Iris} the same as or different from the selection {Iris, Gayle, Charles, David, Elizabeth, Fred, Bob, Herman, Alice}?
If order matters (the two example selections are different), then you want !}) .
If order does not matter (the two examples are considered to be the same selection, then you want !})
Either way, you can do your own arithmetic.
John
My calculator said it, I believe it, that settles it
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