Question: 15 A silver dollar is flipped twice. Calculate the probability of each of the following occurring:

(a) a head on the first flip

(b) a tail on the second flip given that the first toss was a head

(c) two tails

(d) a tail on the first and a head on the second

(e) a tail on the first and a head on the second or a head on the first and a tail on the second

(f ) at least one head on the two flips