One of the ranges into which data in a frequency distribution table (or histogram) are binned. The ends of a class interval are called class limits, and the middle of an interval is called a class mark.
Class Interval
See also
Bin, Class Boundaries, Class Limits, Class Mark, Histogram, Sheppard's CorrectionExplore with Wolfram|Alpha
References
Kenney, J. F. and Keeping, E. S. "Class Intervals." §1.9 in Mathematics of Statistics, Pt. 1, 3rd ed. Princeton, NJ: Van Nostrand, pp. 15-17, 1962.Referenced on Wolfram|Alpha
Class IntervalCite this as:
Weisstein, Eric W. "Class Interval." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/ClassInterval.html