A basic histogram appears as a group of bars of various heights as a representation of the distribution of numerical data. While similar to a bar chart, a histogram differs in that it groups data - such as height, weight, time and other figures - into ranges.
Continue ReadingFor example, consider a study that took the heights of 100 Japanese maple trees in various backyards, which all ranged from 12 to 27 feet. Along the bottom of the histogram, the results might be placed into equal groups of 3 feet; those measuring from 12 to just less than 15 feet, 15 to just less than 18, 18 to just less than 21 and so on, with the side of the graph indicating how many trees fell into each category.
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