they are 22 students in a faternity.in how many ways can a communitue of 9 students be selected?

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m · Answer

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497420

watchmath · Answer

For all your selection problem you just need combination. So here you nee 22 choose 9. You can calculate the numerical value by yourself.

m · Answer

use calculator :P

anonymous · Answer

so 22/9?

anonymous · Answer

22 choose 9 = 22!/9!13! = 497420

m · Answer

no it's 22!/(22-13)!13!

anonymous · Answer

but if u minues 22 from 13 is 9 too

m · Answer

22!/9!13! = 497420 is right answer

m · Answer

but wanted to show how daniel got 9!

watchmath · Answer

@helpers: Do you think this is helpful if the student keep asking the same type of problem and you keep answering them?