您要查找的是不是：
- Density An estimate of the weighted average selectivity of a single value for the column, not counting the selectivity of large single value selectivities stored in the row. density估计的列的单值加权平均选择性,不计算存储在行中的单值选择性大的选择性。
- The average age of the boys in this class is fifteen. 本班男生的平均年龄是十五岁。
- The average output of the factory is 20 cars a day. 该工厂的平均产量是每天20辆汽车。
- His income is well below the average. 他的收入大大低于平均水平。
- We fail one student per year on average. 我们平均每年有一个学生不及格。
- Meals average out at 5 per head. 膳食平均每人5英镑。
- On average we receive five letters each day. 我们平均每天收到五封信。
- Each household sold, on the average, two pigs. 平均每户交售了两口生猪。
- Our reps make on average six calls day. 我们的销售代表平均每天打六次电话。
- She helped to select a dress for Ruth. 她帮着给露丝选了一件衣裳。
- His work at school is below the average. 他的学业成绩在一般水平以下。
- The readings we took were well above average. 我们记录的读数远远高於平均数。
- Tom's work at school is above the average. 汤姆的功课是中上等水平。
- On average, 15 worth of goods is stole every day. 平均每天被窃取的货物价值为15英镑。
- On the average, there are 300 tourists a week. 每星期平均有300游客。
- She only stays at select hotels. 她只住一流旅馆。
- The average age of the students is 19. 学生的平均年龄是19岁。
- Can student willfully select the course? 学生可以随意选择课程吗？
- Months of high and low sales average out over the year. 销售额高低不同的月份按全年统算达到一般水平。
- Their average hourly earnings were ten dollars. 他们每小时的收入是十元。
