Statistics 简明教程

Statistics - Arithmetic Range

The Arithmetic Range of a set of data is the difference between the highest and lowest values in the set.

Arithmetic Range is defined and given by the following function −

Formula

其中——

  1. ${L}$ = Largest item

  2. ${S}$ = Smallest item

This is an absolute measure. The relative measure called as coefficient of range is given by

Example

Problem Statement

切丽尔在一个评分周期中参加了 7 次数学考试。她的考试分数范围和范围系数是多少?

89

73

84

91

87

77

94

Solution

我们将考试分数从低到高排序,得到 -

73

77

84

87

89

91

94

这些考试分数的范围是 21 分,范围系数是 0.1257 分。

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