m=3
甲胜概率+乙胜概率=0.6^3 + 0.4^3 = 0.28
m=4
甲胜(不会先连胜三局)的概率+乙胜(不会先连胜三局)
=( C(3,4)- 1)×(0.6^3 ×0.4+ 0.4^3×0.6)=0.3744
m=5
概率=(C(3,5)- C(3,4))×(0.6^3 ×0.4^2+ 0.4^3×0.6^2)= 0.3456
期望=3×0.28+4×0.3744+5×0.3456=4.0656
m=3
甲胜概率+乙胜概率=0.6^3 + 0.4^3 = 0.28
m=4
甲胜(不会先连胜三局)的概率+乙胜(不会先连胜三局)
=( C(3,4)- 1)×(0.6^3 ×0.4+ 0.4^3×0.6)=0.3744
m=5
概率=(C(3,5)- C(3,4))×(0.6^3 ×0.4^2+ 0.4^3×0.6^2)= 0.3456
期望=3×0.28+4×0.3744+5×0.3456=4.0656