Chapter 4 of 5
Concept Maps
Data Handling — Concept Maps
Gujarat Board · Class 8 · Mathematics
3 concept maps of Data Handling for Gujarat Board Class 8 Mathematics, each also written out as a text outline.
45 questions3 formulas & key relations5 concepts
Interactive on Super Tutor
Studying Data Handling? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for concept maps and more.
Free trial, no card needed.
3 Concept Maps
Data Handling – Complete Chapter Overview
The map in words
- Data Handling
- Types of Graphs
- Pictograph
- Uses symbols
- Each symbol = fixed value
- Bar Graph
- Uniform width bars
- Height shows value
- Double Bar Graph
- Two sets of data
- Used for comparison
- Pictograph
- Pie Chart
- Circle divided into sectors
- Total angle = 360 degrees
- Central Angle Formula
- Value divided by Total times 360
- Percentage divided by 100 times 360
- Steps to Draw
- Calculate fractions
- Find central angles
- Draw and label sectors
- Reading Pie Chart
- Value = Angle divided by 360 times Total
- Probability
- Random Experiment
- Outcome unpredictable
- All outcomes known
- Equally Likely Outcomes
- Same chance each
- Formula
- Favourable divided by Total outcomes
- Key Values
- 0 means impossible
- 1 means certain
- Complement Rule
- P not E = 1 minus P E
- Real Life Uses
- Weather forecast
- Exit polls
- Quality testing
- Random Experiment
- Types of Graphs
Data Handling - Complete Concept Map
The map in words
- Data Handling
- Data Representation
- Pictographs
- Uses symbols
- Easy to understand
- Bar Graphs
- Single bar graph
- Double bar graphs
- Compares values
- Pie Charts
- Shows whole and parts
- Central angles
- Percentages
- Pictographs
- Probability
- Random Experiments
- Fair coin
- Die
- Drawing balls
- Outcomes and Events
- Single outcome
- Multiple outcomes
- Equally likely
- Calculating Probability
- Formula
- Favorable outcomes
- Total outcomes
- Applications
- Exit polls
- Weather prediction
- Quality control
- Random Experiments
- Data Representation
Data Handling – Complete Chapter Overview
The map in words
- Data Handling
- Data Representation
- Pictograph
- Uses symbols
- Each symbol = fixed number
- Bar Graph
- Equal width bars
- Height shows value
- Double Bar Graph
- Two datasets
- Side by side bars
- Pie Chart
- Circle divided into sectors
- Parts of a whole
- Pictograph
- Pie Chart Key Formula
- Central Angle
- Value divided by Total
- Multiplied by 360 degrees
- All angles sum to 360
- All percentages sum to 100
- Central Angle
- Probability
- Random Experiment
- Result unpredictable
- All outcomes known
- Outcomes
- Equally likely
- Each has same chance
- Formula
- Favourable outcomes
- Divided by Total outcomes
- Range
- Minimum value 0
- Maximum value 1
- Complement Rule
- P event + P not event = 1
- Random Experiment
- Data Representation
Explore these maps interactively
Explore DiagramsFrequently Asked Questions
What are the important topics in Data Handling for Gujarat Board Class 8 Mathematics?
Key topics in Data Handling include Types of Graphs – A Quick Recap, Pie Chart (Circle Graph), Chance and Probability. Study these first, then practise questions on each for Class 8 exams.
What do the concept maps for Data Handling show?
The 3 maps show how the ideas in Data Handling connect: Data Handling – Complete Chapter Overview; Data Handling - Complete Concept Map. Each map is also written out as an outline on this page.
How should I revise Data Handling for Class 8 exams?
Learn the core ideas first, then work through the 45 practice questions on Data Handling. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Data Handling
For serious students
Get the full Data Handling chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for Gujarat Board Class 8 Mathematics. Free to start, no card needed.