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OpenStudy (anonymous):
A small start-up company with 15 employees will select its 4 board members from among the employees. How many different groups of board members are possible? Can anyone help? Thanks!
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OpenStudy (kropot72):
You need to find how many combinations there are of the 15 employees taken 4 at a time: 15C4.
OpenStudy (anonymous):
Yeah I got that far, but the thing is I am confused on how to compute 15C4. Thanks. @kropot72
OpenStudy (kropot72):
\[15C4=\frac{15!}{4!11!}=\frac{15\times14\times13\times12}{4\times3\times2\times1}=you\ can\ calculate\]
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