m x n x p x….., where m is the number of choices for the first stage,

n is the number of choices for the second stage,

p is the number of choices for the third stage, and so on.

n!=n x (n-1) x (n-2) x (n-3) x…x 3 x 2 x 1

2!=2 x 1

3!=3 x 2 x 1

4!=4 x 3 x 2 x 1

4x3x2x1 = 4! = 24

4×3 = 12

=6x5x4x3x2x1

=720

=0

=(5x4x3x2x1)-(2×1)

=120-2

=118

ln general, the number of permutations of “n” distinct objects taken “r” at a time is:

a) How many ways can You deal out 13 cards from a standard deck?

Total = 10

Total of S’s =3

Total of T’s = 3

Total of I’s = 2

Total = 8

Total of Birch =4

Total of Oak = 2

Total of Male = 2

Total = 8

Total of Head =5

Total of Tail = 3