A coin is tossed 4 times. What is the probability a that the number of Heads is equal to the number of Tails?	Choose the correct answer.
A) 1/8  B) 1/4  C) 3/8  D) 1/2  E) 9/16
We have to find the probability that we get 2 heads and 2 tails in 4 tosses of the coin.   Using the binary formula and defining a head as a success,   P(2 heads in 4 tosses) = 43/82* (1/2)^2 * (1/2)^2   = 6/16   a= 3/8   The answer is therefore (3/8)
<result>C</result>
A coin is tossed 4 times. What is the probability a that the number of Heads is equal to the number of Tails?