【多选题】【消耗次数：1】
在组距数列中，组中值（ ）。
①
是上限与下限的中点数
②
在开口组中可参照相邻组来确定
③
在开口组中无法计算
④
是用来代表各组标志值的一般水平
⑤
就是组平均数
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相关题目
【多选题】
在组距数列中,组中值
①
上限和下限之间的中点数值
②
用来代表各组标志值的平均水平
③
在开放式分组中无法确定
④
就是组平均数
⑤
在开放式分组中，可以参照相邻组的组距来确定
【多选题】
在组距数列中,组中值
①
上限和下限之间的中点数值
②
用来代表各组标志值的平均水平
③
在开放式分组中无法确定
④
就是组平均数
⑤
在开放式分组中,可以参照相邻组的组距来确定
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①
上限和下限之间的中点数值
②
用来代表各组标志值的平均水平
③
在开放式分组中无法确定
④
在开放式分组中,可以参照相邻组的组距来确定
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