A coin is tossed 7 times. What is the probability of getting exactly 6 heads?  Pick one:  A) 7 / 32  B) 3 / 64  C) 5 / 64  D) 3 / 128  E) 7 / 128

Rationale: "the number of possible outcomes is 2 ^ 7 = 128 there are 7 ways to get exactly 6 heads . p ( exactly 6 heads ) = 7 / 128 the answer is e ."
Answer: E