How to Create a Scatter Plot in Excel

Updated on January 3, 2019
Joshua Crowder profile image

Joshua has work experience in manufacturing, distribution, and aerospace. He received his BBA in accounting from Kent State University.

Scatter Plot

A scatter plot will give you a quick reference as to whether data of two variables is directly related, indirectly related, or not related at all.
A scatter plot will give you a quick reference as to whether data of two variables is directly related, indirectly related, or not related at all.

Introduction

A scatter plot may very well be the most useful creation in the history of statistical graphics. The creation of the scatter plot by Galton led to the use of correlation and regression in the field of statistics.

Scatter plots can tell you a lot about data. Basically, a scatter plot is taking two variables and plotting data points on a graph. Creating a scatter plot in Excel is a great way to find out whether two variables have a relationship and can also measure how close that relationship is. Below is a data set from an unknown source. Even without discussing background information about the data it is still possible to figure out how closely related the two variables are within a scatter plot.

Let's run through an example in Excel to highlight the steps used to create a scatter plot.

Example Data Set

To find a relationship between two variables let each variable represent either an x or y value. When their points are plotted the relationship is visible by how the points are dispersed throughout the a graph.
To find a relationship between two variables let each variable represent either an x or y value. When their points are plotted the relationship is visible by how the points are dispersed throughout the a graph.

Inserting a Scatter Plot

To insert a scatter plot, several steps need to be made. First, select the data that you wish to plot. Next, choose the Insert tab and click on the insert scatter or bubble chart option noted by 3 in the illustration below. Finally, select scatter chart option.

Inserting a Scatter Plot Chart

Inserting the scatter plot takes three easy steps: Selecting the data, selecting the insert scatter or button, then selecting the scatter option.
Inserting the scatter plot takes three easy steps: Selecting the data, selecting the insert scatter or button, then selecting the scatter option.

Displaying Chart Elements of a Scatter Plot

Notice the green cross to the right of the scatter chart that appears after the chart is selected. Click on this button to show chart elements options. The list of elements that appear allow you to change the appearance of your graph by adding them to the chart or removing them.

Dispalying Chart Elements Options

The elements that can be added or removed from a scatter plot are:

  • Axes
  • Axis Titles
  • Chart Title
  • Data Labels
  • Error Bars
  • Gridlines
  • Legend
  • Trendline

Any of the above chart element options can be displayed by clicking on the check box next to that option. Each chart element is further explained below.

Chart Elements Options

By default, axes, chart title, and gridlines are automatically placed on a chart when a chart is first created. It is up to the Excel use to add elements if needed.
By default, axes, chart title, and gridlines are automatically placed on a chart when a chart is first created. It is up to the Excel use to add elements if needed.

Show Axes

The axes are shown on the graph by default. You have the option to remove this option if you wish. When the axes are removed essentially you are removing the measurements for the X and Y axes.

Axes Displayed

It's best for any graph with multiple variables to have the axes displayed so the axes can help tell a story about that information.
It's best for any graph with multiple variables to have the axes displayed so the axes can help tell a story about that information.

Show Axis Titles

When axis titles are displayed the labels can be edited for each axis by double clicking on these text boxes.

Axes Titles Displayed

Chart Title

The chart title is set to display by default. This can be removed by unchecking the check box beside "Chart title" or by right clicking on the chart title and then clicking delete. To edit the title double click its text box.

Chart Title Displayed

Showing Data Labels

A data labels option is available to show data for each data point. By default, the y-axis position data points are displayed when this option is selected.

Data Labels Displayed

Showing Error Bars

Error bars can also be displayed by checking the box next to that option to indicate the uncertainty of data points on the chart.

Error Bars Displayed

Gridlines

This option allows you to either add or remove the line in the background of the chart.

Showing Legend

Adding the legend allows you to identify the plot point and trendline designs in the chart.

Legend Displayed

Show Trendline

The trendline option will display a trendline based on a regression of all the data In the scatter plot. Sometimes when viewing a scatter plot the relation between the variables is not apparent. A trendline can tell you three things:

  • Whether the data is inversely related when the trendline slants down from left to right.
  • whether the data has a direct relationship when the trendline slants up from right to left.
  • Whether the data has no relationship when the trendline is a flat line.

Trendline Displayed

Formatting the Trendline

The trendline offers additional options. A few options that can benefit an analysis your data are the options to display the regression equation for the data and R-squared value on the chart. To complete this task, click on the chart, then click on the arrow to the right of the trendline option.

Trendline Options

Adding the Slope Equation & R Squared

To add the regression equation and R-square value click on the check boxes shown in the illustration belo.

Equation & R-Square Displayed

This article is accurate and true to the best of the author’s knowledge. Content is for informational or entertainment purposes only and does not substitute for personal counsel or professional advice in business, financial, legal, or technical matters.

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    © 2019 Joshua Crowder

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