←概率论 为求P(B1), 设H{飞机被第认击中},i1,2,3 可求得 P(B,)=P(H,H, HUH H, H, UH, H, H3) P(B2)=P(H,H,H,UH,H HyUH,H,H, P(B3)=P(H1H2H3) 将数据代入计算得 P(B1)=0.36;P(B2)=0.4l;P(B3)=0.14.概率论 可求得 为求P(Bi ) , 设 Hi={飞机被第i人击中}, i=1,2,3 将数据代入计算得 P(B1 )=0.36;P(B2 )=0.41;P(B3 )=0.14. P B P H H H H H H H H H ( 1 1 2 3 1 2 3 1 2 3 ) = ( ) P B P H H H H H H H H H ( 2 1 2 3 1 2 3 1 2 3 ) = ( ) P B P H H H ( 3 1 2 3 ) = ( )