题型:解答题 题类:常考题 难易度:普通
频率分布直方图
40.03 40.00 39.98 40.00 39.99 40.00 39.98 40.01 39.98 39.99 40.00 39.99 39.95 40.0l 40.02 39.98 40.00 39.99 40.00 39.96
分 组 | 频数 | 频率 |
|
[39.95,39.97) | |||
[39.97,39.99) | |||
[39.99,40.01) | |||
[40.0l,40.03] | |||
合计 |
年份( ) | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 |
年宣传费 (万元) | 23 | 25 | 27 | 29 | 32 | 35 |
年销售量 (吨) | 11 | 21 | 24 | 66 | 115 | 325 |
试题篮