[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fBshXKoGz0-1dgLv1HikiIk-XvUGGU9WA1Ow5chVpcnM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":18,"related":19,"source":29,"type":58},[],"2025-03-03 16:51:41",1067857692,[8,9,10,11],"对称分布","随着n的大小而变化的一条曲线","自由度较小,t分布是均匀分布","自由度较大,t分布越接近标准正态分布",{"courseId":13,"courseImg":14,"courseName":15,"workId":16,"workName":17},"1000006939","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F35e7db4f2b0a296f22c15a3fb97bc274.png","教育统计学","61429538","第六章单元测试","下列关于t分布的表述,正确的是()",[20,31,40,49,59,62,71,80,89,98],{"answer":21,"createTime":5,"id":22,"options":23,"question":28,"source":29,"type":30},[],1067857596,[24,25,26,27],"不影响事件","相容事件","不相容事件","独立事件","在一次试验中,若事件B的发生不受事件A的影响,则称A、B事件为( )","v2",0,{"answer":32,"createTime":5,"id":33,"options":34,"question":39,"source":29,"type":30},[],1067857624,[35,36,37,38],"5道","6道","7道","8道","有10道是非题,要从统计上(95%的把握)判断一个被试并非因猜测因素答对,他至少应正确回答的题目数是( )",{"answer":41,"createTime":5,"id":42,"options":43,"question":48,"source":29,"type":30},[],1067857686,[44,45,46,47],"观察一家超市某日的营业额","掷两个骰子,记录它们各自出现的点数","随机抽5个学生来回答某个问题,观察回答正确的学生人数","观察一射击选手射靶10 次的中靶次数","下列随机试验中,概率测度遵循古典概型的是( )",{"answer":50,"createTime":5,"id":51,"options":52,"question":57,"source":29,"type":58},[],1067857688,[53,54,55,56],"任何一个实验恰好有两个结果","共有n次实验,并且n是预先给定的任一整数","每次实验可以不独立","每次实验之间无相互影响","二项试验满足的条件有( )",1,{"answer":60,"createTime":5,"id":6,"options":61,"question":18,"source":29,"type":58},[],[8,9,10,11],{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":29,"type":30},[],1067857726,[66,67,68,69],"25.00%","34.13%","50.00%","68.26%","在标准正态分布曲线下,正负1个标准差范围内的面积占曲线总面积的( )",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":29,"type":30},[],1067857729,[75,76,77,78],"0.5","0.05","0.005","0.001","掷骰子游戏中,一个骰子掷6次,问3次6点向上的概率是( )",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":29,"type":30},[],1067857738,[84,85,86,87],"卡方分布","t分布","F分布","正态分布","总体服从正态分布且方差已知时,其样本均值的分布是()",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":29,"type":58},[],1067857765,[93,94,95,96],"曲线以平均数为对称轴","Y值越大,p值越大","曲线与X轴区域面积为1","曲线呈现"中间高、两边低"的形状","下列关于正态曲线模型,正确的是( )",{"answer":99,"createTime":5,"id":100,"options":101,"question":104,"source":29,"type":30},[],1067857768,[87,102,84,103],"T分布","二项分布","下列统计分布中,不受样本容量变化影响的是( )"]