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Data – Its Source and Compilation

Madhya Pradesh Board · Class 12 · Geography

NCERT Solutions for Data – Its Source and Compilation — Madhya Pradesh Board Class 12 Geography.

59 questions72 flashcards5 concepts

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14 Questions Solved · 1 Section

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Exercises

1(i)A number or character which represents measurement is calledShow solution
A number or character which represents a measurement is called data. The chapter defines data as numbers that represent measurements from the real world.

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1(ii)A single datum is a single measurement from theShow solution
A single datum is a single measurement from the real world. The chapter says: “Datum is a single measurement.”

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1(iii)In a tally mark grouping by four and crossing fifth is calledShow solution
Grouping tally marks by four and crossing the fifth is called the Four and Cross Method. The chapter also says it is popularly known as tally marks.

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1(iv)An Ogive is a method in whichShow solution
An Ogive is the curve obtained by plotting cumulative frequencies. So, it is a method in which cumulative frequency is plotted.

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1(v)If both ends of a group are taken in frequency grouping, it is calledShow solution
If both ends of a group are taken in frequency grouping, it is called the Inclusive Method. In this method, both the lower and upper limits are included in the class.

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2(i)Differentiate between data and information.Show solution
Data are the raw facts or numbers representing measurements from the real world. Information is a meaningful answer to a query or a meaningful stimulus that can lead to further queries. So, data are the basic measurements, while information is the meaningful result obtained from data.

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2(ii)What do you mean by data processing?Show solution
Data processing means collecting raw data and then tabulating, classifying, organising, ordering and analysing it so that meaningful conclusions can be drawn. In the chapter, raw data are grouped into classes and frequencies to make them easy to understand.

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2(iii)What is the advantage of foot note in a table?
2(iv)What do you mean by primary sources of data?
2(v)Enumerate five sources of secondary data.
3(i)Discuss the national and international agencies where from secondary data may be collected.
3(ii)What is the importance of an index number? Taking an example examine the process of calculating an index number and show the changes.
1In a class of 35 students of Geography, following marks were obtained out of 10 marks in unit test – 1, 0, 2, 3, 4, 5, 6, 7, 2, 3, 4, 0, 2, 5, 8, 4, 5, 3, 6, 3, 2, 7, 6, 5, 4, 3, 7, 8, 9, 7, 9, 4, 5, 4, 3. Represent the data in the form of a group frequency distribution.
2Collect the last test result of Geography of your class and represent the marks in the form of a group frequency distribution.

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Frequently Asked Questions

What are the important topics in Data – Its Source and Compilation for Madhya Pradesh Board Class 12 Geography?
Data – Its Source and Compilation covers several key topics that are frequently asked in Madhya Pradesh Board Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Data – Its Source and Compilation — Madhya Pradesh Board Class 12 Geography?
Understand the core concepts first, then work through the 59 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
Where can I get free NCERT Solutions for Data – Its Source and Compilation Class 12 Geography?
This page has free step-by-step NCERT Solutions for every exercise question in Data – Its Source and Compilation (Madhya Pradesh Board Class 12 Geography) — written the way examiners award marks: given, formula, working, answer.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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