要画图的!不过给你描述下,1.概率分布：投中0次,概率为0.6的五次方；投中一次,0.4x0.6的4次方；投中两次,0.4的平方乘以0.6的三次方；投中三次,0.4的三次方乘以0.6的平方；投中四次,0.4的四次方乘以0.6；投中五次,0.4...