SOLUTION: how many ways can 4 students be chosen out of 10 students

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Question 1018419: how many ways can 4 students be chosen out of 10 students
Answer by ikleyn(52911) About Me  (Show Source):
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In how many ways can 4 students be chosen out of 10 students
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C%5B10%5D%5E4 = %2810%2A9%2A8%2A7%29%2F%281%2A2%2A3%2A4%29 = 10*3*7 = 210.

Here C%5B10%5D%5E4 is the number of combination of 10 objects taken 4 at a time.

See the lesson Introduction to Combinations in this site.