Find the mode and range of a data set.

Math Problem Solving Quiz

Find the Mode and Range of a Data Set

In this lesson, you will learn how to find the **mode** and **range** of a data set. These are two important measures in statistics that help describe and summarize a set of numbers.

What is the Mode?

The mode is the number that appears most frequently in a data set. For example, in the data set {2, 3, 3, 5, 6}, the mode is 3 because it appears twice, which is more than any other number.

What is the Range?

The range is the difference between the highest and lowest numbers in a data set. To calculate the range, subtract the smallest number from the largest number. For example, in the data set {1, 3, 5, 8, 10}, the range is 10 - 1 = 9.

Example:

Consider the data set: {4, 7, 7, 8, 9, 9, 9, 12}

• The **mode** is 9, because it appears three times, more than any other number.
• The **range** is 12 - 4 = 8, because 12 is the largest number and 4 is the smallest number.

Now, let’s test your understanding of mode and range in the quiz below!

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