Question1: In how many different ways can a panel of 12 jurors and 2 alternates be chosen from a group of 17 prospective jurors?
Question2: At a college library exhibition of faculty publications, four mathematics books, four social science books, & four biology books will be displayed on a shelf.
[a] In how many ways can the 12 books be arranged on the shelf if books on the same subject matter are placed together?
[b] In how many ways can the 12 books be arranged on the shelf?