Oops you've got this the wrong way round Comment The chance of being shot if you go first is 1/6+5/6×5/6×1/6+... = p the chance if you go second is 5/6×1/6+5/6×5/6×5/6×1/6+... = 5/6 p Thus best to go second and p = 6/11 Reply
The chance of being shot if you go first is
1/6+5/6×5/6×1/6+... = p
the chance if you go second is
5/6×1/6+5/6×5/6×5/6×1/6+... = 5/6 p
Thus best to go second and p = 6/11