- Aclass marks only
- Bcontinuous (exclusive) class boundaries
- Cpercentages
- Dratios
Step-by-Step Solution
Inclusive classes are made continuous (0.5-10.5, 10.5-20.5, ...) before plotting an ogive.
Answer: B) continuous (exclusive) class boundaries
To draw an ogive for class intervals 1-10, 11-20, 21-30 (inclusive form), we must first convert them to:
Class 10Cumulative Frequency and OgiveStatistics and Probability
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