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OpenStudy (anonymous):
How many different 12-member juries can be made from 150 people?
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OpenStudy (debbieg):
Do you know the combinations rule?
OpenStudy (debbieg):
Order doesn't matter here, so you would need a combination. \[_{150}C_{12}\]
OpenStudy (debbieg):
\[\large _{n}C_{r}=\frac{ n! }{ (n-r)!r! }\]
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