甲在0:1落后情况下,最后获胜概率为
(1-2/3)*(2/3)^3+(1-2/3)*C(3,2)*(2/3)^2*(1-2/3)*(2/3)
=(1/3)*(2/3)^3+(1/3)*3*(2/3)^2*(1/3)*(2/3)
=8/81+8/81
=16/81
甲在0:1落后情况下,最后获胜概率为
(1-2/3)*(2/3)^3+(1-2/3)*C(3,2)*(2/3)^2*(1-2/3)*(2/3)
=(1/3)*(2/3)^3+(1/3)*3*(2/3)^2*(1/3)*(2/3)
=8/81+8/81
=16/81