A coin is tossed 4 times. What is the probability of getting exactly 3 heads?  Choose the correct choice
A) 1/2  B) 1/4  C) 1/8  D) 1/16  E) 3/16
The number of possible outcomes is 2^4 = 16   There are 4 ways to get exactly 3 heads.   P(exactly 3 heads) = 4/16 = 1/4   The answer is 1/4.
<result>B</result>
A coin is tossed 4 times. What is the probability of getting exactly 3 heads?