一个容量100的样本,其数据的分组与各组的频数如下表:
组别 | |||||||
频数 | 12 | 13 | 24 | 15 | 16 | 13 | 7 |
则样本数据落在上的频率为( )
A.0.13 B.0.37 C.0.52 D.0.68
高二数学选择题中等难度题
组别 | (0,10] | (10,20] | (20,30) | (30,40) | (40,50] | (50,60] | (60,70] |
频数 | 12 | 13 | 24 | 15 | 16 | 13 | 7 |
高二数学选择题中等难度题查看答案及解析
组别 | (0,10] | (10,20] | (20,30) | (30,40) | (40,50] | (50,60] | (60,70] |
频数 | 12 | 13 | 24 | 15 | 16 | 13 | 7 |
高二数学选择题中等难度题查看答案及解析
组别 | (0,10] | (10,20] | (20,30) | (30,40) | (40,50] | (50,60] | (60,70] |
频数 | 12 | 13 | 24 | 15 | 16 | 13 | 7 |
高二数学选择题中等难度题查看答案及解析
组别 | (0,10] | (10,20] | (20,30) | (30,40) | (40,50] | (50,60] | (60,70] |
频数 | 12 | 13 | 24 | 15 | 16 | 13 | 7 |
高二数学选择题中等难度题查看答案及解析
组别 | (0,10] | (10,20] | (20,30) | (30,40) | (40,50] | (50,60] | (60,70] |
频数 | 12 | 13 | 24 | 15 | 16 | 13 | 7 |
高二数学选择题中等难度题查看答案及解析
组别 | (0,10] | (10,20] | (20,30) | (30,40) | (40,50] | (50,60] | (60,70] |
频数 | 12 | 13 | 24 | 15 | 16 | 13 | 7 |
高二数学选择题中等难度题查看答案及解析
组别 | (0,10] | (10,20] | (20,30) | (30,40) | (40,50] | (50,60] | (60,70] |
频数 | 12 | 13 | 24 | 15 | 16 | 13 | 7 |
高二数学选择题中等难度题查看答案及解析
组别 | (0,10] | (10,20] | (20,30] | (30,40] | (40,50] | (50,60] | (60,70] |
频数 | 12 | 13 | 24 | 15 | 16 | 13 | 7 |
高二数学选择题中等难度题查看答案及解析
组别 | (0,10] | (10,20] | (20,30) | (30,40) | (40,50] | (50,60] | (60,70] |
频数 | 12 | 13 | 24 | 15 | 16 | 13 | 7 |
高二数学选择题中等难度题查看答案及解析
组别 | (0,10] | (10,20] | (20,30) | (30,40) | (40,50] | (50,60] | (60,70] |
频数 | 12 | 13 | 24 | 15 | 16 | 13 | 7 |
高二数学选择题中等难度题查看答案及解析