[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f-8ruNTYdLl70wXipl3XiZQOqbMqBwSdTih8jTpe0hIc":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-09-18 08:54:19",217033766,[8,9,10,11],"随机","对照","均衡","简单",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},10,"ee30132e175260c835b0dead8336d9de","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","统计学","19c0fd911b764c5cb0a2bb39328635d1","第二章","科学研究需要掌握的基本原则不包括",[21,32,41,50,59,62,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],217033762,[25,26,27,28],"总体中的典型部分","总体中有意义的一部分","从总体中随便抽取的一部分","从总体中随机抽取的一部分","用样本的信息推断总体,样本应该是","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],217033763,[36,37,38,39],"研究样本信息","研究总体信息","研究典型案例","样本推断总体的特征","抽样调查的目的是",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],217033764,[45,46,47,48],"幸存者的信息没有代表性,无法代表总体特征","幸存者是最好的样本","幸存者的信息总是错误的","幸存者信息往往样本量太小,没法代表总体","幸存者偏差指的是",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],217033765,[54,55,56,57],"非代表性抽样","简单随机抽样","系统抽样","整群抽样","要调查某一个学校男性学生的吸烟现况,随机抽取 20 个班级,每个班级所有男生都开展问卷调查.这种抽样方法是",{"answer":60,"createTime":5,"id":6,"options":61,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],217033767,[66,67,68,69],"总体均数","描述总体特征的指标","描述样本特征的指标","描述人群特征的指标","在统计学上的统计量是指",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],217033768,[75,76,77,78],"样本与总体应同质","样本含量应适宜","应使观察值无变异","应采用随机抽样","要使样本对总体具有代表性,下列是错误的措施是",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],217033769,[84,85,86,87],"通过这次考试,可以认为甲班的数学平均水平高于乙班","通过这次考试,可以认为甲班的这次数学考试平均成绩高于乙班","对于评价两个班级的这次数学考试平均成绩而言,两个班级的数学平均分存在抽样误差","对于评价两个班级的数学水平而言,这次数学考试成绩不存在抽样误差","某学校有甲班和乙班,用同一张数学试卷进行考试,经过盲态改卷,甲班平均分为 87,乙班平均分为 86 分,请问:下列哪个说法是正确的",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],217033770,[93,94,95,96],"其值必须由某一统计量对应的概率分布表中得到","其值的大小在 0 和 1 之间","随机事件发生的概率小于 0.05 或 0.01 时可认为在一次抽样中它不可能发生","必然事件发生的概率为 1","概率是描述某随机事件发生可能性大小的数值,以下对概率的描述哪项是错误的( )",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],217033771,[102,103,104,105],"必然事件","不可能事件","小概率事件","偶然事件","统计学常将 P≤0.05 或P≤0.01 的事件称"]