Identifying Discrete Variable
Which of the following is classified as a DISCRETE variable?
- Age
- Rainfall in a city
- Area of a field
- Number of students in a class — Correct Answer
Explanation:
Correct Answer Explanation
Number of students in a class is a discrete variable — it can only be a whole number (25, 30, 40...) and never a fraction.
Quick Classification Guide:
- Discrete: Number of students, number of cars, number on dice, number of children, population count.
- Continuous: Age, rainfall, area, volume, temperature, height, weight, distance, time.
Note on Age:
Age is continuous because it can be expressed as 25 years 3 months 14 days — i.e., it takes values continuously.
📚 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.
