If a fair coin is flipped three times in a row, what is the probability that there will be at least one head and one tail?	Choose the correct choice:	A) 3/4	B) 11/12	C) 15/16	D) 31/32	E) 63/64
The number of possible outcomes is 2^3 = 8   There is one way to get no heads and one way to get no tails.   Thus there are 6 outcomes with at least one head and one tail.   P(at least one head and one tail) = 6/8 = 3/4   The answer is 3/4.
<result>A</result>
If a fair coin is flipped three times in a row, what is the probability that there will be at least one head and one tail?