A) \[\frac{4}{3}\]
B) \[\frac{3}{4}\]
C) \[\frac{1}{4}\]
D) \[\frac{1}{2}\]
Correct Answer: B
Solution :
[b]\[S=\{HHH,HHT,HTH,HTT,THH,THT,TTH,TTT\}\]\[E=\{HHH,HHT,HTH,THH\};\]\[F=\{HHH,HHT,HTH,HTT\}\] \[E\cap F=\{HHH,HHT,HTH\};n(E\cap F)=3,n(F)=4\]\[\therefore \] Reqd prob. \[=P\left( \frac{E}{F} \right)=\frac{n(E\cap F)}{n(F)}=\frac{3}{4}\]You need to login to perform this action.
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