问题
选择题
下列叙述随机事件的频率与概率的关系中,说法正确的是[ ]
A.频率就是概率
B.频率是客观存在的,与试验次数无关
C.随着试验次数的增多,频率一般会越来越接近概率
D.概率是随机的,在试验前不能确定
答案
答案:C
下列叙述随机事件的频率与概率的关系中,说法正确的是[ ]
A.频率就是概率
B.频率是客观存在的,与试验次数无关
C.随着试验次数的增多,频率一般会越来越接近概率
D.概率是随机的,在试验前不能确定
答案:C
补全对话,根据对话内容从方框中选出最佳选项,有两项为多余选项。(5分) Lucy:Hello, Mum! Mum: Hello, Lucy. ____小题1:_______ Lucy: Fine . We have a woman teacher. She is nice. Mum: ____小题2:_______ Lucy: Her name is Susan Smart . Mum: What’s that on the floor? ____小题3:________ Lucy: No, it isn’t. Mum: _____小题4:__________ Lucy: It is in my bag. Um, look , Mum . It’s here. Mum: ______小题5:________ Lucy: I think it’s my new CD. Lucy: I think it’s my new CD.
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