Class 12 Economics Basic Concepts of Statistics Notes and Important Questions
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Notes for Class 12 Basic Concepts of Statistics (Economics) are shown above.
Practice
Important Questions
The sources of primary data collection are book, newspaper, radio, etc. But there are various problems in data collection from such sources. In this regard, point out any two problems while using the data from secondary sources.
Write any two pre-requisites of primary data collection.
If the difference and sum of first quartile (Q₁) and third quartile (Q₃) are 45 and 75 respectively, find the coefficient of quartile-deviation and interpret it.
What is Primary Data?
Calculate the mean deviation and its coefficient using mean from the following data.
Marks | 0–10 | 10–20 | 20–30 | 30–40 | 40–50 |
|---|---|---|---|---|---|
No. of Students (f) | 7 | 8 | 15 | 5 | 5 |
Define statistics in a singular sense.
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Exam
Past Question Analysis
Historical exam-pattern data from past NEB question papers — not a prediction of future questions.
16
Question Items
24
Total Marks
4
Papers Appeared In
| Year | Question Items | Marks |
|---|---|---|
| 2083 | 4 | 8 |
| 2082 | 4 | — |
| 2081 | 4 | 8 |
| 2080 | 4 | 8 |
Also appears in 4 model questions (not counted above — model sets aren't actual NEB exam history).
This page covers Basic Concepts of Statistics, chapter 13 of 14 in the Class 12 Economics syllabus set by the National Examination Board (NEB). 25 important questions for this chapter are available, each with a full solution.
For subjects like this one, examiners tend to reuse similar question patterns year to year — comparing this chapter's important questions against recent old NEB papers is one of the more efficient ways to revise.