A) \[\frac{57}{64}\]
B) \[\frac{229}{256}\]
C) \[\frac{7}{64}\]
D) \[\frac{37}{256}\]
Correct Answer: D
Solution :
The required probability \[={}^{8}{{C}_{6}}{{\left( \frac{1}{2} \right)}^{6}}.{{\left( \frac{1}{2} \right)}^{2}}+{}^{8}{{C}_{7}}{{\left( \frac{1}{2} \right)}^{7}}.\left( \frac{1}{2} \right)\text{ }+{}^{8}{{C}_{8}}{{\left( \frac{1}{2} \right)}^{8}}=\frac{37}{256}\].
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