When tossed, a certain coin has equal probability of landing on either side. If the coin is tossed 5 times, what is the probability that it will land on either side all 5 times?
Options:
(A) 1/5
(B) 1/10
(C) 1/12
(D) 1/16
(E) 1/32 Stream of consciousness first, then make a decision:
Must be either 5 heads or 5 tails
1/2*1/2*1/2*1/2*1/2 + 1/2*1/2*1/2*1/2*1/2
1/32 + 1/32 = 1/16
Thus, the answer is (D).