Discrete Variable Definition
A variable that can take only certain values and changes by finite 'jumps' without taking intermediate values is called:
- Continuous variable
- Qualitative variable
- Discrete variable — Correct Answer
- Time series variable
Explanation:
Correct Answer Explanation
A Discrete Variable can take only certain values and its value changes only by finite 'jumps' — it does not take any intermediate value between two values.
Key Points:
- Example: Number of students in a class — can be 25 or 26 but never 25.5.
- Example: Number of cell phones used by a family — only whole numbers.
- A discrete variable can also take fractional values like 1/8, 1/16, 1/32... — but it cannot take any value between two adjacent values.
- Discrete variables use both inclusive and exclusive class intervals.
- For discrete variables, classification is known as a Frequency Array.
📚 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.
