How to Find the Range from a Frequency Table

Finding the Range from a Frequency Table

We can find the range of a set of numbers presented in a frequency table.

How to Find the Range from a Frequency Table

Finding the range from a frequency table is easy.

Question

The frequency table below shows the test scores for a class of students.

What is the range of the test scores?

Step-by-Step:

1

Make sure the entries in the Score column are in numerical order. In our example, the entries are in numerical order.

2

Find the lowest entry in the Score column (with a Frequency greater than 0).

In our example, the lowest entry is 5. The lowest test score is 5.

3

Find the highest entry in the Score column (with a Frequency greater than 0).

In our example, the highest entry is 10. The highest test score is 10.

3

Subtract the lowest number (5) from the highest number (10).

10 − 5 = 5

Answer:

The range of the test scores is 5.

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See Also

What is the range? What is a frequency table? Finding the range