PRC-2 · Chapter 7 · Question 44 of 60
Why are strict 'class boundaries' established for grouped continuous data?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: B) To mathematically eliminate any gaps between consecutive classes, ensuring continuity.
Explanation
Class boundaries extend the discrete class limits by half a unit in both directions, mathematically closing the gap between classes so that continuous variables can be properly categorized without falling between groups.
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