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Sample Comparison Bar Graph comparing precipitation (mm) of 2 or more cities:

Below is a sample bar graph comparing the precipitation (mm) for three cities. In order to graph the data, you first need to enter the data into a spreadsheet. Note: you will get the actual numbers from the Weather Learning Log immediately after you complete your investigation. Here's an example of spreadsheet data.

Once you've entered the data, you need to highlight the data and have your spreadsheet program make a graph for you. This command will vary from program to program so make sure to review the instructions in your program. The spreadsheet program will then create a graph for you with the precipitation (mm) on one side, the y-axis, and the dates for on the other. Also, in this graph make sure to pick appropriate scale for both the y-axis. You can also change the colors of the bars for the cities and widen them as in the example below:

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