It expresses 'spread', being how far the values are distributed (or how concentrated they are). If you want to know more about statistics, methodology, or research bias, make sure to check out some of our other articles with explanations and examples. The 'range' of a list a numbers is just the difference between the largest and smallest values. NoteTo get a clear idea of your data’s variability, the range is best used in combination with other measures of variability like interquartile range and standard deviation. It can’t tell you about the shape of the frequency distribution of values on its own. Click here for a Detailed Description of all the Mean, Mode, Median, and Range Worksheets. These Mean, Mode, Median, and Range Worksheets are a great resource for children in Kindergarten, 1st Grade, 2nd Grade, 3rd Grade, 4th Grade, and 5th Grade. Although we have a large range, most values are actually clustered around a clear middle.īecause only two numbers are used, the range is easily influenced by outliers. Our Mean, Mode, Median, and Range Worksheets are free to download, easy to use, and very flexible. In the example above, the range indicates much more variability in the data than there actually is. In math, range is a statistical measurement of dispersion, or how much a given data set is stretched out from smallest to largest. With an outlier, our range is now 42 years. Using the same calculation, we get a very different result this time: Range example with an outlierOne value in your data set is replaced with an outlier. One extreme value in the data will give you a completely different range. When paired with measures of central tendency, the range can tell you about the span of the distribution.īut the range can be misleading when you have outliers in your data set. The range generally gives you a good indicator of variability when you have a distribution without extreme values. If youre doing statistics, the 'range' usually means the difference between the highest value and lowest value in a set of data. Then subtract the lowest from the highest value. You have two different ways to define range in math. Participantįirst, order the values from low to high to identify the lowest value ( L) and the highest value ( H). Range exampleYour data set is the ages of 8 participants. This process is the same regardless of whether your values are positive or negative, or whole numbers or fractions. ![]() ![]()
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