Difference between upper limit and lower limit of a class is known as.
Options
ARange
BClass mark
CClass size
DClass boundary
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Central Tendency & DispersionPYQ Nov. 19Question 3075 of 473
All Questions Correct Answer
✅ Option c — Class size
All Options:
- ARange
- BClass mark
- CClass size
- DClass boundary
Detailed Solution & Explanation
**Step 1: Recall definitions.**
- **Range** = Maximum value - Minimum value (for raw data) or Upper limit - Lower limit (of the entire distribution).
- **Class mark** = (Upper limit + Lower limit)/2 = midpoint of a class.
- **Class size (class width/interval)** = Upper limit - Lower limit of a class.
- **Class boundary** = the actual limits of a class after adjusting for continuity.
**Step 2: Identify the correct answer.**
The difference between upper limit and lower limit of a **class** is the **class size (class width/class interval)**.
This is **Option C** (Class size).
Note: The exam key says A (Range), but technically the difference between upper and lower limit of a single class is the **class size**, while Range applies to the entire data set.
Hence, **Option C** is the correct answer.
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