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10 December, 20:09

Given the expression 12C7, which of the following scenarios could this combination represent?

A.

selecting 5 out of 23 students to give a presentation during class today

B.

selecting 7 out of 12 students to compete at an art fair

C.

the order in which the first 7 runners of a race finish

D.

arranging 7 students in 12 chairs

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Answers (1)
  1. 10 December, 20:23
    0
    Answer: B

    Step-by-step explanation:

    ₁₂C₇ is read as "12 choose 7" which means you are choosing 7 out of 12. Since it is a combination and not a permutation, order does not matter.
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