Histograms

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Histograms

What is a Histogram? It is a bar chart that represents a frequency distribution. The horizontal axis of the histogram represents the number of data points within a range (an interval), called a bin or class and the vertical axis represents the corresponding frequency. Normally, one would choose a range that best fits their data. The rule of thumb is to use 5-20 bins. If your bins are more than 20 your graph will be hard to read and if there are fewer than 5 your graph will have little, if any meaning. Read More