(1)所求概率=C(5,2)*A(3,3)*0.46^2*0.40*0.11*0.03=0.01675872
(2)所求概率=C(5,3)*0.46^3*0.40^2=0.1557376
(3)所求概率=(1-0.03)^5=0.97^5=0.8587340257
(1)所求概率=C(5,2)*A(3,3)*0.46^2*0.40*0.11*0.03=0.01675872
(2)所求概率=C(5,3)*0.46^3*0.40^2=0.1557376
(3)所求概率=(1-0.03)^5=0.97^5=0.8587340257