SOLUTION: A class of 13 students is trying to decide how they should form themselves into groups of 4 for an upcoming clasroom activity. One of the students first proposes they calculate ho
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Question 391385: A class of 13 students is trying to decide how they should form themselves into groups of 4 for an upcoming clasroom activity. One of the students first proposes they calculate how many combinations of 4 students can be made from 13 people. After doing the calculations, how many groups of 4 people can be made from a student population of 13 people?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
)
is the number of combinations of 
things taken 
at a time and is calculated by !})
So you want:
\ =\ \frac{13!}{4!(13\,-\,4)!})
You can do your own arithmetic. Hint:
John
My calculator said it, I believe it, that settles it
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