A) 1/3
B) 2/3
C) 3/5
D) 2/15
Correct Answer: A
Solution :
[a] \[P({{B}_{1}})=\frac{^{6}{{C}_{1}}}{^{6}{{C}_{1}}}=\frac{6}{10}=\frac{3}{5}\] \[P({{B}_{2}}/{{B}_{1}})=\frac{5}{9}({{B}_{2}}=black)\] \[\therefore P({{B}_{1}}\cap {{B}_{2}})=P({{B}_{1}})P({{B}_{2}}/{{B}_{1}})=\frac{3}{5}\times \frac{5}{9}=\frac{1}{3}\]You need to login to perform this action.
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