Sunday, July 17, 2011

Box plot



The box plot, also known as the “box and whisker plot”, is a statistical graphing tool that breaks down a set of data into five quantiles considering the minimum, the lower, the median, the upper, and the maximum. There are also occasionally points of data that do not fit in with any and they displayed a simple empty dot on the chart. Looking that box plot shown here, we can see the minimum had most sales between 1,000 and 2,000 widgets, but went as low as almost 0 and as high as 2,500. The median was 1,500 widgets for the minimum group X and the statistical averaged minimum was around 1,600 widgets.

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