probability

A committee must be formed with 4 teachers and 4 students. If there are 6 teachers to choose from, and 12 students, how many different ways could the committee be made?

gracias

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  1. what is
    C(6,4) * C(12,4) ?

  2. C(6,4) is the notation we use to find the number of ways you can CHOOSE 4 from 6 items
    if the order does not matter. This is called a combination.
    C(n,r) = n!/(r!9n-r)!)

    sometimes written as nCr

    If you are getting these kind of questions, you MUST be familiar with this terminology.

  3. i dont get it

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  4. do i multiply 15 times 495?

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