NCERT · Class 9 · Mathematics · StatisticsWhat is the width of the class interval 20-30?
Step-by-Step Solution
Class width (or class size) is the difference between the upper limit and the lower limit of a class interval. Width = Upper limit - Lower limit = 30 - 20 = 10.
Detailed Options Breakdown
Option : 5
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Statistics.
Option 1: 10 (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: 20
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Statistics.
Option 3: 30
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Statistics.
💡 Study Guide: This question tests core syllabus concepts from Statistics. For formulas, key summaries, and mock exam reference guides, read the full Statistics Revision Notes.