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26 June, 10:46

An instructor chooses 8 students to answer questions from a class of 15. how many different groups of students could be chosen

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  1. 26 June, 10:50
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    It's a combination of a group of 8 students chosen among 15 students.

    ¹⁵C₈ = (15!) / (15-8) ! (8!) = 6435 ways
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