一袋中装有5只球,编号为1,2,3,4,5.在袋中同时取3只,以X表示取出的3只球中的最大号码,则 A. P(X=3)= B. P(X=4)= C. P(X=5)=
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【单选题】Psychologists study memory and learning with both animal and human subjects. The two experiments reviewed here show how short-term memory has been studied. Hunter studied short-term memory in rats. He...