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Pareto Charts
Use Pareto Charts to display the frequency of a variety of factors thought to effect a specific outcome. List these factors along the bottom, and show the incidence of each with the height of the bar above it. Be sure to arrange the factors with the greatest or most frequent cause on the left, then the other, lesser factors in descending order towards the right. Instead of listing every one of the most insignificant factors, you may choose instead to combine them into a single "other" category. Pareto Charts are a great way to rank categorical data, to see which categories or factors are predominant. Improvement teams can then focus their attention on the vital few factors that cause most of the problems.
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