Here are the best free online graph and chart maker tools that let you generate animated ... Scatter, 3D Map, Hierarchy, Line Chart race, Heatmap, Radar Chart, Pictogram, Table, Bubble Chart ...

To construct a scatter graph first identify the smallest and largest frequencies. For maths the smallest mark is 24 and the largest is 94. The horizontal axis will need to include this range.

Given the data in Excel you can output a Fourier series and then graph it using the XY Scatter graph. Install the Excel Analysis ToolPak. Launch Excel and click on the "File" tab in the upper-left.