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Revision Notes
Collection of Data — Revision Notes
Gujarat Board · Class 11 · Statistics
Collection of Data revision notes for Gujarat Board Class 11 Statistics: 4 topics in quick points. Part of the Gujarat Board Class 11 Statistics syllabus.
45 questions25 flashcards5 concepts
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Key Topics to Revise
1
Origin and Growth of Statistics
- Indian contribution to statistics dates back to Mauryan Empire (321-296 BC)
- Abu Fazal's 'Ain-I-Akbari' (1596-97 AD) described advanced statistical systems during Akbar's reign
- German word 'Statistik' first used by Gottfried Achen Wall in 1749
2
Types of Data: Qualitative vs Quantitative
- Variable characteristics can be measured numerically (quantitative) or observed non-numerically (qualitative)
- Qualitative data deals with attributes that cannot be measured on a scale
- Quantitative data deals with numerical variables that can be measured
3
Primary vs Secondary Data
- Primary data: Originally collected for the first time by authorized agency/investigator
- Secondary data: Data collected by others and reused by current investigator
- Primary data is original and obtained from units under inquiry
4
Methods of Collecting Primary Data
- Three main methods: Direct Inquiry, Indirect Inquiry, Method of Questionnaire
- Direct Inquiry: Investigator personally visits field and collects information
- Indirect Inquiry: Information obtained through third party when direct contact not possible
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Full NotesKey Concepts
Statistics is the science that dealsQualitative data represents nonData originally collected by authorized agenciesData that was previously collected byThe investigator or enumerator personally visits
Frequently Asked Questions
What are the important topics in Collection of Data for Gujarat Board Class 11 Statistics?
Key topics in Collection of Data include Origin and Growth of Statistics, Types of Data: Qualitative vs Quantitative, Primary vs Secondary Data, Methods of Collecting Primary Data. Study these first, then practise questions on each for Class 11 exams.
How should I revise Collection of Data for Class 11 exams?
Learn the core ideas first, then work through the 45 practice questions on Collection of Data. 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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