Probability 3 Question 47
47. $P(X=Y)$ is
(a) $\frac{11}{36}$
(b) $\frac{1}{3}$
(c) $\frac{13}{36}$
(d) $\frac{1}{2}$
Show Answer
Solution:
- $P[X=Y]=P($ draw $) \cdot P($ draw $)$
$+P\left(T _1\right.$ win $) P\left(T _2\right.$ win $)+P\left(T _2\right.$ win $) \cdot P\left(T _1\right.$ win $)$ $=(1 / 6 \times 1 / 6)+(1 / 2 \times 1 / 3)+(1 / 3 \times 1 / 2)=13 / 36$