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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: NCERT Class 10 Mathematics, Chapter 14, Statistics._
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