Question

精通计算概率的高人,进来帮我计算一下概率~

Answer 1

0.8*0.84*087=0.58464

0.2*0.84*0.87+0.8*0.16*0.087+0.8*0.84*0.13+0.2*0.16*0.87+0.2*0.84*0.13+0.8*0.16*0.13+0.2*0.16*0.13=

即把各种可能的概率算出想加

太长啦我就不算啦