A fair coin is tossed 5 times. What is the probability of getting at least 3 heads on consecutive tosses?
I said HHHHH, HHHHT, HHHTH, HHHTT, THHHT, THHHH, TTHHH, HTHHH are all the possible ways this can happen.
Since there are 32 possible ways of doing five coin tosses:
8/32 = 1/4 = .25