Pareto

A Pareto chart is used for showing everything 80-20. Containing a column and a line arranged in descending order, you can use it to isolate the key causes of a problem, or for determining the key factors for success. For example, if you had to see from which 20% of your code do 80% of your bugs emanate from, or which 20% of your customers generate 80% of your revenue, the Pareto charts is the best fit.