SOLUTION: In how many ways can a committee of at least four but not more than six people be chosen from a group of seven ?
a 24 b 63 c 210 d 343 e 8400
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Question 252529: In how many ways can a committee of at least four but not more than six people be chosen from a group of seven ?
a 24 b 63 c 210 d 343 e 8400
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
nCr=n!/((n-r)!r!) Combination of n things r at a time.
.
7C4=35
7C5=21
7C6= 7
------------
===>63
.
Ed
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