Definition of Range
The Range of a variable is defined as:
- The average of the largest and smallest observations
- The difference between the largest and the smallest observations — Correct Answer
- The ratio of the largest to the smallest observation
- The sum of all observations in the data
Explanation:
Correct Answer Explanation
Range = Largest value − Smallest value of the variable in the dataset.
Key Points:
- Range represents the overall spread of the data.
- Number of classes = Range ÷ Class Interval (for equal class intervals).
- Example: If marks range from 0 to 100, Range = 100 − 0 = 100; with class interval of 10, number of classes = 100/10 = 10.
- Range helps decide the size of class intervals while constructing a frequency distribution.
📚 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.
