Three unbased coins are tossed. the probability of getting at most two head is ?  Choose the correct choice from the following
A) 1/2	B) 7/8	C) 3/4	D) 1/5	E) 2/3
S={TTT,TTH,THT,HTT,THH,HTH,HHT,HHH}   E be the event of getting at least two head is {THH,HTH,HHT,TTT,TTH,THT,HTT}   P(E)=n(E)/n(S)=7/8   Answer(7/8)
<result>B</result>
Three unbased coins are tossed. the probability of getting at most two head is ?