Afair coin is tossed two times in succession. the set of equally likely outcomes is {hh, ht, th, tt}. find the probability of getting the same outcome on each toss.

The two outcomes with tail on the second toss is HT and TT, and there are two other options (HH and TH) giving you two desired outcomes out of a possible 4, which is a probability of 2/4 = 1/2 = 0.5 or 50%. 1/2 or .50% is the probability of getting the same outcome on the second toss.