Question 1178081: a coin is tossed thrice.what is the probability of having two heads and a tail.
Answer by mananth(16946)   (Show Source):
You can put this solution on YOUR website! sample space tossing coin thrice
S={HHH,HHT,HTH,HTT,THH,THT,TTH,TTT}.
n(S) =8
Two heads and tail Let A be the event
A = {HHT,HTH,THH,}.
n(A)=3
p(A) = n(a)/n(s) = 3/8
the probability of having two heads and a tail =3/8
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