NEED HELP PLEASE

The websites are confusing! Can someone please explain what a revenue variance is? I want to do my homework for a spreadsheet I downloaded.

I just need the definition, please.

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  1. The meaning of variance, and the method of computing it, is described here:
    http://davidmlane.com/hyperstat/A16252.html

    Apply that method to a set of revenue numbers that you should have been provided in the spreadsheet.

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  2. Thank you!

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