分布的形状与集中量数
如果将大量数据画成光滑的次数分布曲线，则可以认为：
- 算术平均数是数据分布的重心或平衡点
- 中数正好把分布分成相等的两半
- 分布的最高点对应众数
If a large amount of data is plotted as a smooth frequency distribution curve, it can be considered that:
- The arithmetic mean is the center of gravity or equilibrium point of a data distribution.
- The median exactly divides the distribution into two equal halves.
- The highest point of the distribution corresponds to the mode.
正偏态分布中，算术平均数＞中数＞众数；负偏态分布中，算术平均数＜中数＜众数；分布对称时，三个值重合。
In a normally skewed distribution, arithmetic mean>median>mode; In a negatively skewed distribution, the arithmetic mean<median<mode; When the distribution is symmetrical, the three values equal.
分布的形状与集中量数.txt · 最后更改: 2024/03/08 03:40 由 2104龚文滕