📙 Review Exercise 12
Master Class 9 Mathematics Review Exercise 12 on Information Handling with comprehensive solutions and detailed explanations. This resource covers frequency distributions, histograms, frequency polygons, mean, median, and mode – complete with step-by-step examples and practice problems aligned with the PECTAA 2025 syllabus.
Quick Links:
Chapter 1
Real Numbers
Chapter 2
Logarithms
Chapter 3
Sets and Functions
Chapter 4
Factorization and Algebraic Manipulation
Chapter 5
Linear Equations and Inequalities
Chapter 6
Trigonometry
Chapter 7
Coordinate Geometry
Chapter 8
Logic
Chapter 9
Similar Figures
Chapter 10
Graphs of Functions
Chapter 11
Loci and Construction
Chapter 12
Information Handling
Chapter 13
Probability
Review Exercise 12 - Information Handling
This comprehensive review exercise covers all key concepts of information handling including frequency distributions, graphical representations, and measures of central tendency.
Review Exercise 12 provides a complete assessment of the entire Information Handling chapter, testing students' understanding of data organization, visualization techniques, and statistical calculations.
The exercise includes multiple problem types ranging from definitions and frequency table construction to histogram drawing, frequency polygon creation, and calculations of mean, median, and mode using various methods.
Key Topics Covered
- Definitions of key statistical terms
- Frequency distribution table construction
- Histogram and frequency polygon drawing
- Arithmetic mean calculation (direct and shortcut methods)
- Median determination for both odd and even datasets
- Mode identification
- Class boundaries and midpoints
- Real-world application problems
Important Note:
This review exercise serves as excellent preparation for examinations, covering all essential concepts from the Information Handling chapter. Practice with these problems will help solidify understanding of data organization and statistical analysis techniques.
Featured Problem Types
- Definition Questions: Clear explanations of frequency distribution, histogram, mean, and median
- Data Organization: Creating frequency tables from raw data with proper class intervals
- Graphical Representation: Drawing histograms and frequency polygons with correct scaling
- Statistical Calculations: Finding mean using both direct and shortcut methods
- Real Applications: Solving practical problems involving funds allocation and test scores
Created by Hira Science Academy | Aligned with PECTAA 2025 Syllabus