Frequency Histogram: Definition & Examples

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  • 0:04 Frequency Histograms
  • 1:32 Frequency Histogram Elements
  • 2:00 Example
  • 3:25 Lesson Summary
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Lesson Transcript
Instructor: Nola Bridgens

Nola has taught elementary school and tutored for four years. She has a bachelor's degree in Elementary Education, a master's degree in Marketing, and is a certified teacher.

In this lesson, you'll discover what a frequency histogram is and how to identify its elements. You'll also learn how frequency histograms help organize data through real-life examples.

Frequency Histograms

Have you ever wanted to live in the freezing tundra of Alaska? If so, I hope you like cold weather! The following data set shows the average temperature each month in Fairbanks, Alaska:

1 10 25 44 61 68

67 66 55 32 11 5

We can organize this data into a frequency histogram to help us analyze the information. A frequency histogram is a graph with vertical columns that represent the frequency of a data point or range of data points occurring in a set of data. It's a really useful tool we can use to visualize a data set and make it easier to understand.

alaska histogram

In this data set, as you can see, we have numbers that range from 1 to 68, so it makes sense to organize the frequency histogram into groups of 10. You can see these groups on the x-axis labeled 'Average Monthly Temperature in Degrees F.' The height of each bar, labeled on the y-axis, represents how many times the numbers in the range appeared in the data set. Looking at the frequency histogram, we can quickly see that the most common temperatures are 0-9 degrees, 10-19 degrees, and 60-69 degrees. That's pretty darn cold, so I'm ready to talk about somewhere warmer, but first let's go over the elements every frequency histogram needs.

Frequency Histogram Elements

Every frequency histogram needs a title, an x-axis, a y-axis, and bars. The x-axis lists all the mutually exclusive outcomes from the data set, each with their own bar. The y-axis has a scale that shows the frequency of that outcome in the data set. The height of the bar aligns with the appropriate number on the scale on the y-axis to show the frequency of that particular outcome occurring in the data set.


I don't know about you, but I'm ready to talk about somewhere warmer. How about the tropical paradise of Hawaii? Brock and his brother Jackson went exploring the endless beaches in Hawaii in search of seashells and other ocean findings. After a long day in the warm sun, they came home with a bucket full of treasures. This is what they found:

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