# How to Calculate the Midrange

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Midrange determines the number that is halfway between the minimum and maximum numbers of a data set. It is a statistical tool that identifies a measure of center like median, mean or mode.

## How to Find Midrange

Midrange is a simple statistical tool requiring minimal calculations.

## Step 1: Organize Data in Order

Organize the data in ascending or descending order. This will reduce the chances of choosing the incorrect numbers for the midrange formula.

## Step 2: Find Minimum and Maximum Numbers in Data

Locate the minimum and maximum numbers in the data set. If Step 1 was followed, these will be the numbers at the beginning and end of the data set list.

Example: Consider the data set 110, 150, 180, 220, 270, 290, 310 and 390 as the prices of speakers. The minimum number is 110, and the maximum is 390.

## Step 3: Use Midrange Formula

M = (max + min) / 2

• M = midrange
• Max = maximum value in data set
• Min = minimum value in data set

For the data set above: (390 + 110) / 2 = 500 / 2 = 250

## Difference Between Midrange and Interquartile Range

Interquartile range, often found in box plots of data sets, is the middle 50 percent of values in an ordered (ascending order, lowest to highest) data set. The midrange, however, is the mean, or average, of the minimum and maximum data points.

## Uses of Midrange and Measures of Center

Measures of center help to analyze numerical data. In the example above, it helps decipher whether a particular set of speakers is above or below the average price of \$250. Many electronic items, including televisions, appliances and high-priced items like automobiles are often classified as midrange, and this denotes they are within the middle price bracket.

When the mean temperature for the day is given, it usually denotes the midrange — or the added highest and lowest temperatures of a particular day divided by two.

When discussing sound, midrange frequencies are sound waves that fall between 500 Hertz and 2,000 Hertz. Speakers that reproduce sound within this region are called midrange, a denotation different from cost analysis.