As a teacher, he thinks his business is to stir up() in his students rather than insist on obedience. A.observation B.curiosity C.superiority D.judgmen
参考答案:
设随机变量X与Y相互独立,其概率分布分别为X - 1 1 Y - 1 P1 ; P 则P(X=y)=
设随机变量X与Y相互独立,其概率分布分别为X - 1 1 Y - 1 P1 ; P 则P(X=y)=