A) \[\frac{1}{15}\]
B) \[\frac{11}{15}\]
C) \[\frac{2}{15}\]
D) \[\frac{13}{15}\]
Correct Answer: B
Solution :
\[\because \] \[P(A\cup B)=P(A)+P(B)-P(A\cap B)\] \[=P(A)+P(B)-P(A)-P(B)\] (\[\because \] A and B are independent events) \[=\frac{2}{3}+\frac{1}{5}-\frac{2}{3}\times \frac{1}{5}\] \[=\frac{10+3-2}{15}=\frac{11}{15}\]You need to login to perform this action.
You will be redirected in
3 sec