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The class mark of a class interval is the:

AWidth of the class interval
BFrequency count of the class
CAverage of upper and lower limits
DUpper limit of the class only
Answer & Solution
Correct answer: C. Average of upper and lower limits
1. It represents the whole class. 2. Add the two limits and halve. 3. That is the class mark. _Source: syllabus Mathematics, Chapter 14, Statistics._
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