Statistics for People Who (Think They) Hate Statistics

by Neil J. Salkind

Maintain the scale in a graph. “Scale” refers to the proportional relationship between the horizontal and vertical axes. This ratio should be about 3 to 4, so a graph that is 3 inches wide will be about 4 inches tall. Simple is best and less is more. Keep the chart simple but not simplistic. Convey one idea as straightforwardly as possible, with distracting information saved for the accompanying text. Remember, a chart or graph should be able to stand alone, and the reader should be able to understand the message. Limit the number of words you use. Too many words, or words that are too large (both in terms of physical size and idea-wise), can detract from the visual message your chart should convey. A chart alone should convey what you want to say. If it doesn’t, go back to your plan and try it again.