An experiment consists of tossing a coin and then tossing it second time if a head occurs. If a tail occurs on the first toss, then a die is tossed once. Find the sample space.

In the first toss of a coin if a head appears then in the second toss a head or a tail may appear. But if in the first toss of a coin a tail appears then a die is tossed. Then in second toss any one number out of 1, 2, 3, 4, 5, 6 may appear on the uppermost face of the die.

The sample space is given by = {HH, HT, T1, T2, T3, T4, T5, T6}