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OpenStudy (anonymous):
How many different 12-member juries can be chosen from a pool of 45 people?
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OpenStudy (phi):
any ideas? how about 45 choose 12 ?
OpenStudy (anonymous):
im not sure
OpenStudy (cwrw238):
45C12 that means the number of combinations of 12 people from 45
OpenStudy (cwrw238):
and its given by 45! ----- 12! (45-12)!
OpenStudy (cwrw238):
do you know what the ! after the number means?
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OpenStudy (phi):
If you have time, see https://www.khanacademy.org/math/precalculus/prob_comb/combinatorics_precalc/v/combinations
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