Six stand-up comics, A, B, C, D, E, and F, are to perform on a single evening at a comedy club. The order of performance is determined by random selection. Find the probability that:

a. Comic

Upper CC

will perform

fourthfourth.

b. Comic

Upper BB

will perform

lastlast

and Comic

Upper DD

will perform

fifthfifth.

c. The comedians will perform in the following order:

Upper C comma Upper B comma Upper D comma Upper A comma Upper E comma Upper FC,B,D,A,E,F.

d. Comic

Upper EE

or Comic

Upper FF

will perform

lastlast.

a.

b.

c.

d.