Statistics 简明教程

Statistics - Deciles Statistics

将给定的数据或值在序列中的随机分布划分为十组具有类似频率的组的系统称为十分位数。

A system of dividing the given random distribution of the data or values in a series into ten groups of similar frequency is known as deciles.

Formula

其中——

Where −

  1. ${l}$ = lower boundry of deciles group.

  2. ${h}$ = width of deciles group.

  3. ${f}$ = frequency of deciles group.

  4. ${N}$ = total number of observations.

  5. ${c}$ = comulative frequency preceding deciles group.

Example

Problem Statement:

Problem Statement:

计算以下表格的分布十分位数：

Calculate the deciles of the distribution for the following table:

fi

Fi

[50-60]

8

8

[60-60]

10

18

[70-60]

16

34

[80-60]

14

48

[90-60]

10

58

[100-60]

5

63

[110-60]

2

65

65

Solution:

Solution: