A man kept 6 black, 5 brown and 7 purple shirts in a drawer. What is the probability of his picking a purple shirt with his eyes closed ____________
A. 1/7
B. \(7 / 18 \)
C. \(11 / 18\)
D. \(7 / 11\)
E. \(5 / 10\)
Correct Answer: B
Explanation
\(6 \rightarrow\) Black. \(5 \rightarrow\) brown. \(7 \rightarrow\) purple
\begin{aligned}
\operatorname{Pr} &=\frac{n(\text { event space })}{n \text { (sample) }} \\
\text { Total } &=\frac{\text { no of purple }}{\text { no of shirt }}=\frac{7}{18}
\end{aligned}