Suddenly one boy tossed 3 coins. What is the probability of getting at most two heads?
Choose the correct answer:
A) 2/7
B) 3/11
C) 7/8
D) 4/13
E) 3/16
Here S = {TTT, TTH, THT, HTT, THH, HTH, HHT, HHH}   Let E = event of getting at most two heads.   Then E = {TTT, TTH, THT, HTT, THH, HTH, HHT}.   P(E) =	n(E)	=	7/8   n(S)   7/8
<result>C</result>
Suddenly one boy tossed 3 coins. What is the probability of getting at most two heads?