Exclusive Class Interval Definition
In which type of class interval is a value equal to the upper or lower class limit EXCLUDED from the frequency of that class?
- Inclusive class intervals
- Exclusive class intervals — Correct Answer
- Open-ended class intervals
- Unequal class intervals
Explanation:
Correct Answer Explanation
In Exclusive Class Intervals, an item equal to either the upper or the lower class limit is excluded from the frequency of that class.
Exclusive Example (for marks 0–100):
- 0–10, 10–20, 20–30, ..., 90–100
- A student scoring exactly 10 marks goes into class 10–20, NOT 0–10 (lower limit excluded case).
- OR a student scoring 10 goes into class 0–10, NOT 10–20 (upper limit excluded case).
Key Points:
- Exclusive class intervals maintain continuity of data.
- We must decide in advance which limit to exclude.
- Both inclusive and exclusive can be used for discrete variables.
📚 About this Topic — CH-3: Organisation of Data
This multiple choice question is from CH-3: Organisation of Data, NCERT Books, Statistics for Economics. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from CH-3: Organisation of Data to strengthen your preparation.
