Chapter 13 of 16
Revision Notes
Statistics — Revision Notes
Maharashtra Board · Class 9 · Mathematics
Statistics revision notes for Maharashtra Board Class 9 Mathematics: 4 topics in quick points. Part of the Maharashtra Board Class 9 Mathematics syllabus.
44 questions22 flashcards5 concepts
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Key Topics to Revise
1
Bar Diagrams and Data Representation
- Sub-divided bar diagram shows total value divided into parts proportionally
- Percentage bar diagram converts data into percentages for better comparison
- Sub-divided bars help compare multiple entities across different categories
2
Data Collection and Types
- Statistics originated from Latin word 'status' meaning state situation
- Sir Ronald Aylmer Fisher is known as Father of Statistics
- Primary data is collected personally through surveys, measurements, interviews
3
Frequency Distribution
- Frequency distribution organizes data in tabular form showing how often each value occurs
- Ungrouped frequency distribution lists individual values and their frequencies
- Grouped frequency distribution combines similar values into classes or intervals
4
Cumulative Frequency Distribution
- Cumulative frequency shows total frequency up to a certain class
- Less than type: sum of frequency of current class and all previous classes
- More than type: sum of frequency of current class and all subsequent classes
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Full NotesKey Concepts
A type of bar diagram whereA special type of subInformation collected directly by the researcherInformation that has already been collectedA systematic arrangement of data showing
Frequently Asked Questions
What are the important topics in Statistics for Maharashtra Board Class 9 Mathematics?
Key topics in Statistics include Bar Diagrams and Data Representation, Data Collection and Types, Frequency Distribution, Cumulative Frequency Distribution. Study these first, then practise questions on each for Class 9 exams.
How should I revise Statistics for Class 9 exams?
Learn the core ideas first, then work through the 44 practice questions on Statistics. 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.
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