If four coins are tossed, the probability of getting two heads and two tails is__________?

A. 3/8
B. 6/11
C. 2/5
D. 4/5

Explanation:

Since four coins are tossed, sample space = 24
Getting two heads and two tails can happen in six ways.

n(E) = six ways
p(E) = 6/24 = 3/8