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Which of the following expressions would give the number of ways to choose a group of 7 from a group of 15?
A. 7!/1517!
B. 15!/718!
C. 7!/1518!

Sagot :

Answer:

B

Step-by-step explanation:

The number of ways to choose a combination of 7 objects from a group of 15 objects is 15! / (7! 8!)

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