permutations:
nPr = n(n - 1)(n - 2) ... (n - r + 1) = n! / (n - r)!
In a contest in which 8 contestants are entered, in how many ways can the 5 distinct prizes be awarded?
3 answers
n = 8
r = 5
nPr = 8!/(8-5)! = ?
8! = "8 factorial" = 8 * 7 * 6* 5 * 4 * 3 * 2 * 1
I hope this helps a little more.
r = 5
nPr = 8!/(8-5)! = ?
8! = "8 factorial" = 8 * 7 * 6* 5 * 4 * 3 * 2 * 1
I hope this helps a little more.
6720