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一组数据2.2,3.3,4.4,11.1,a.其中整数a是这组数据中的中位数,则这组数据的平均数是
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对一组数据进行适当的整理有如下的结论其中错误的是
画频数分布直方图时,小长方形的高等于频数
各组的频率之和为1
若最小值和越大值之差除以组距等5
,则数据应分为5组
组距的确定可以根据这组数据的最大值与最小值的差决定
一组数据2368x的众数是x其中x又是不等式组的整数解则这组数据的中位数可能是
3
4
6
3或6
一组数据2368其中又是不等式组的整数解则这组数据的中位数可能是
3
4
6
3或6
一组数据3468x的中位数是x且x是满足不等式组的整数求这组数据的平均数
在人的次级精母细胞非后期内染色体的组成正确的一组是
44+XX
44+XY
44+YY
22+X或22+Y
一组数据1367x的众数是x其中x又是不等式组的整数解则这组数据的中位数可能是【】
3
4
6
3或6
当5个整数从小到大排列时其中位数为4如果这个数据组的唯一众数是6则这5个整数可能的最大的和是
21
22
23
24
在人的处于减数第二次分裂前期的次级精母细胞内染色体的组成正确的一组是
44+XX
44+XY
44+YY
22+X或22+Y
一组数据2368x的众数是x其中x又是不等式组的整数解则这组数据的中位数可能是
3
4
6
3或6
一组数据-1-2x12其中x是小于10的非负整数且数据的方差是整数则数据的标准差是
已知一组数据都是整数其中最大值是242最小数据是198若把这组数据分成9个小组则组距是___.
一组数据1367x的众数是x其中x又是不等式组的整数解则这组数据的中位数可能是【】
3
4
6
3或6
三个连续正整数的和小于36则其中最大的一组之和为
36
35
33
30
已知一组数据是连续的整数其中最大值是242最小数据是198若把这组数据分成9个小组则组距是.
下面说法①如果一组数据的众数是5那么这组数据中出现次数最多的数是5②如果一组数据的平均数是0那么这组
1
2
3
4
今测得一组质量数据为42克42克43克45克46克46克则这一组数据的中位数是
4
43
44
45
一组数据﹣1﹣2x12其中x是小于10的非负整数且数据的方差是整数则数据的标准差是.
已知一组数据都是整数其中最大值是242最小数据是198若把这组数据分成9个小组则组距是.
一组数据3468x的中位数是x且x是满足不等式组的整数则这组数据的平均数是.
一组数据2.23.34.411.1a.其中整数a是这组数据中的中位数则这组数据的平均数是.
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