This video will cover two important topics for statistical data analysis based on frequency. The Pareto and Histogram Charts are very good to plot frequency. Pareto is to show data based on 80-20 rule. You can use such analysis in Finance for Customers/Suppliers analysis, in stores items cost analysis, etc.
https://en.wikipedia.org/wiki/Pareto_principle
VIDEO:
https://youtu.be/PjCPH9SzkoM
MS Excel Histogram and Pareto Charts with 80-20 Rule
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