[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fGDjFkvWWUAPqgoWqFq0KtNhC5xFXjOhyoz0kJnQy9T8":3},{"id":4,"source":5,"question":6,"options":7,"answer":12,"related":13,"type":24,"origin":100,"createTime":73},186385967,"v1","根据样本数据3、5、12、10、8、22,计算的标准差是( )",[8,9,10,11],"6.13","45.2","6.72","17.94",[],[14,27,37,47,54,64,74,78,87,94],{"id":15,"source":5,"question":16,"options":17,"answer":22,"related":23,"type":24,"origin":25,"createTime":26},186385956,"下列关于众数的叙述,不正确的是( )",[18,19,20,21],"众数主要适用于分类数据","众数不受极端值的影响","一组数据可能存在多个众数","一组数据的众数是唯一的",[],[],0,null,"2025-05-08T16:36:21+08:00",{"id":28,"source":5,"question":29,"options":30,"answer":35,"related":36,"type":24,"origin":25,"createTime":26},186385958,"非众数组的频数占总频数的比例称( )",[31,32,33,34],"离散系数","平均数","标准差","异众比率",[],[],{"id":38,"source":5,"question":39,"options":40,"answer":45,"related":46,"type":24,"origin":25,"createTime":26},186385960,"偏态系数测度了数据分布的非对称性程度.如果一组数据的分布是对称的,则偏态系数( )",[41,42,43,44],"大于0","大于1","等于0","等于1",[],[],{"id":48,"source":5,"question":49,"options":50,"answer":52,"related":53,"type":24,"origin":25,"createTime":26},186385962,"峰态通常与标准正态分布相比较.如果一组数据服从标准正态分布,则峰态系数( )",[41,43,51,44],"小于1",[],[],{"id":55,"source":5,"question":56,"options":57,"answer":62,"related":63,"type":24,"origin":25,"createTime":26},186385964,"对于右偏分布,平均数、中位数和众数之间的关系是( )",[58,59,60,61],"众数>中位数>平均数","众数\u003C中位数\u003C平均数","众数>平均数>中位数","中位数\u003C众数\u003C平均数",[],[],{"id":65,"source":5,"question":66,"options":67,"answer":71,"related":72,"type":24,"origin":25,"createTime":73},186385966,"在反应总体分布的离散特征中,由极端值决定的离散特征是( )",[68,69,33,70],"平均差","标准差系数","极差",[],[],"2025-05-08T16:36:22+08:00",{"id":4,"source":5,"question":6,"options":75,"answer":76,"related":77,"type":24,"origin":25,"createTime":73},[8,9,10,11],[],[],{"id":79,"source":5,"question":80,"options":81,"answer":85,"related":86,"type":24,"origin":25,"createTime":73},186385968,"一组数据排序后处于中间位置上的变量值称为( )",[82,83,84,32],"四分位数","众数","中位数",[],[],{"id":88,"source":5,"question":89,"options":90,"answer":92,"related":93,"type":24,"origin":25,"createTime":73},186385969,"各变量值与其平均数离差平方的平均数称为( )",[91,33,70,68],"方差",[],[],{"id":95,"source":5,"question":96,"options":97,"answer":98,"related":99,"type":24,"origin":25,"createTime":73},186385971,"比较计量单位不同的多个总体之间的变异情况,应采用( )",[33,31,91,70],[],[],{"courseName":101,"courseImg":102,"workName":103,"workId":104,"count":105,"courseId":106},"2024-2025第二学期统计学","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F48eba3395437dd881b1b9275a0ad1028.png","第三章章节测试","work_42902300",28,"a3938d539a196c55134a8d1e0c0a86a4"]