measure of central tendency

例句：

1. 1.The data shows that the population is increasingat a rate of 2% peryear.
   数据显示，人口每年以2%的速度增长。
2. 2. In statistics, the mean isoften used to describe the central tendency ofa set of numbers.
   在统计学中，均值通常用来描述一组数字的中心趋势。
3. 3.The measure of central tendency is calculated bytaking the average of all values in thedataset.
   计算中心趋势的度量方法是取数据集所有值的平均值。