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The school debate coach must select a group of four from the 11-member team to go to the state championship. How many ways can the group be chosen?

A7,920
B7,133
C330
D24

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buisangtn15

the answer is 330
choose 4 from 11 people without arrangement is 11C4

so theres 11 people inthe group. there are 11 possibilities for spot 1 of the 4. there are then 10 possibilitiesfor spot 2 of the 4. then 9 for spot 3 and 8 for spot 4. you wouldmultiply 11×10×9×8. so the answer is a) 7920

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