Question

From a group of n people, suppose that we want to choose a committee of k, k ≤ n, one of whom is to be designated as chairperson.
(a) By focusing first on the choice of the committee and then on the choice of the chair, argue that there are
possible choices.
(b) By focusing first on the choice of the nonchair committee members and then on the choice of the chair, argue that there are
possible choices.
(c) By focusing first on the choice of the chair and then on the choice of the other committee members, argue that there are n
possible choices.
(d) Conclude from parts (a), (b), and (c) that
(e) Use the factorial definition of
to verify the identity in part (d).


$1.99
Sales0
Views64
Comments0
  • CreatedOctober 22, 2015
  • Files Included
Post your question
5000