The "lower class boundary" is a term used in statistics when you work with grouped data in intervals. Imagine you're looking at a table that shows different ranges of test scores for a class, like 10-20, 20-30, and so on. The lower class boundary is the smallest number that a group can have. For the 10-20 range, the lower class boundary is 10. Understanding this helps you better organise and analyse data in graphs and charts.
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