Class Intervals for Discrete Variables
For a discrete variable, which of the following forms of class intervals can be used?
- Only inclusive class intervals
- Only exclusive class intervals
- Both exclusive and inclusive class intervals — Correct Answer
- Only open-ended class intervals
Explanation:
Correct Answer Explanation
In the case of discrete variables, both exclusive and inclusive class intervals can be used.
Key Points:
- Continuous variables: Inclusive class intervals are used very often.
- Discrete variables: Both exclusive and inclusive can be used.
- For discrete variables with whole number values, the classification is often done as a Frequency Array (each integer value gets its own frequency).
- Example: Size of household (1, 2, 3, 4, 5, 6, 7, 8) → Frequency Array, not class intervals.
📚 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.
