PRC-2 · Chapter 7 · Question 57 of 60
What is the primary statistical purpose of converting discrete 'class limits' into continuous 'class boundaries'?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: B) To mathematically close the gaps between consecutive classes, ensuring continuity for graphing tools like histograms.
Explanation
Class boundaries are formed by extending the limits by half a unit (e.g., 9.5 to 19.5), which completely eliminates gaps between classes, allowing continuous data to be plotted without interruption.
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