For this assignment Permutations are used to make life easy and simple.
The number of permutations of r distinct objects chosen from n distinct objects is denoted by P(n,r).
The basic equation for a Permutation is
$ P(n,r) = \frac{n!}{(n-r)!} for 0 <=r<=n $
a) 8!
b) 2*7!
c) 2*4!*4!
d) 5!*3!*3
e) 4*2!*4!
Q's: Do you understand how I got these answers?
Do you think the answers are correct?
What is the probability I would post an incorrect answer on purpose?
