A) 1/2
B) 3/8
C) 5/8
D) 3/4
Correct Answer: B
Solution :
\[n=3,P\](success) \[=P(HTorTH)=1/2\] \[\Rightarrow \]\[p=q=\frac{1}{2}\]and\[r=2\] \[p(r=2){{=}^{3}}{{C}_{2}}{{\left( \frac{1}{2} \right)}^{2}}.\frac{1}{2}=\frac{3}{8}\]You need to login to perform this action.
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