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Graphing

Histograms

Answers

  1. The result of dividing the range of scores by the number of classes.
    Bin width is another name for the width of each class interval.

  2. According to Sturges' rule, there should be 13 intervals because the base 2 logarithm of 4096 (which is close to 4000) is 12.
    Thirteen intervals. Sturges' rule sets the number of intervals as close as possible to 1 + Log2(N), where Log2(N) is the base 2 log of the number of observations.