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A chart could be made more informative by selectively shading regions of the background with different colors. For example, a run chart may show colored bands to indicate standard deviations of a process value from the mean. Excel only provides the ability to add one color to the background, but multiple colors can be added by creating a combination chart with added area chart series colored as desired. This tutorial shows how to construct such a chart. '); document.write(' | ');
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