The first step to create a dot plot is to choose your data. You need a single variable that has numerical values, such as test scores, heights, or weights.

The procedure to create a scatter plot in Excel is as follows: Select the data across both the columns (from A3 to B12). Go to Insert > Scatter Plot. Select the appropriate Scatter Plot chart.

How to Make a Scatterplot on Excel. A scatterplot chart graphs two related data values as a single dot by plotting one value on the horizontal X axis and the other value on the vertical Y axis.