\( \displaystyle \left( \frac{3}{36} \right)*20+\left( \frac{23}{36} \right)*15+\left( \frac{10}{36} \right)*10=\frac{505}{36} \)
轉移矩陣\( \left[ \matrix{\displaystyle 0&\frac{1}{6}&0\cr 1&\frac{1}{2}&\frac{2}{3}\cr 0&\frac{1}{3}&\frac{1}{3}} \right] \)
PS:大家都好認真哦~~