Important Update Regarding Online Content & Classes

Dear Students, Readers, and Subscribers,

I am posting this update to share a critical decision regarding the future of new content on this blog and our YouTube channel.

Over the past months, I have been facing severe financial difficulties. I reached out to our community for support to help sustain our online teaching efforts. However, apart from two dedicated students—to whom I am deeply grateful—I did not receive any financial support from the wider audience.

Decision: Consequently, I have decided to discontinue creating new online teaching content for AHSEC/ASSEB Class 12 and Dibrugarh University courses.

Creating regular content requires significant time, effort, and resources. Under the current circumstances, it is no longer sustainable for me to dedicate time here without mutual community support.

Moving forward, I will be directing my time and energy toward my personal academic goals—specifically preparing for my CMA Final Examination in December 2026. Focusing on my studies is necessary for my professional career and long-term stability.

A sincere thank you to the two students who stepped forward during this difficult period, and to everyone who has supported my work over the years. All existing notes and study materials will remain available on the blog for your reference.

I wish you all the very best in your studies and future exams.

Warm regards,
Kumar Nirmal Prasad

Dibrugarh University Arts Question Papers: ECONOMICS (Elementary Statistics for Economics) ' November - 2013

byKumar Nirmal Prasad - 0

[BA 5th Sem Question Papers, Dibrugarh University, 2013, Economics, General, Elementary Statistics for Economics]

2013 (Nov)
ECONOMICS (General)
Course: 501
(Elementary Statistics for Economics)
Full Marks: 80
Pass Marks: 32
Time: 3 hours
The figures in the margin indicate full marks for the questions


1. Choose the correct option/Answer the following: 1x8=8
  1. Direct personal investigation is related to
  1. Index number.
  2. Secondary data.
  3. Primary data.
  4. Government data.
  1. Which formula is not used to calculate arithmetic mean?
  1. Which concept in statistics is shown in percentage?
  1. Geometric mean.
  2. Mode.
  3. Index number.
  4. Range.
  1. Coefficient or variation is related to quartile deviation.
  1. Yes.
  2. No.
  1. Which of the following is not a measure of dispersion?
  1. Mean deviation.
  2. Harmonic mean.
  3. Range.
  4. Interquartile range.
  1. Show is percentage:
  1. Index number measures
  1. National income.
  2. Cost of living.
  3. Agricultural production.
  4. Rate of employment.
  1. Exit poll findings are based on
  1. Random sample of universe.
  2. Complete survey of the universe.
  3. Quota sample of the universe.
  4. None of the above.
2. Write short notes on any four of the following (within 150 words each): 4x4=16
  1. Primary data.
  2. Arithmetic mean.
  3. Quartile deviation.
  4. Random sampling.
  5. Uses of index number.
3. (a) Distinguish between primary and secondary data. Which one is reliable? What information or data, you collect from the students of a college to know the family background and academic aspect of the students?    4+1+6=11
Or
(b) Distinguish between classification and tabulation of data. Illustrate the components of a table with an example.        5+6=11
4. (a) Define median and mode. Explain how these measures are calculated in case of ungrouped and grouped data.        4+7=11
Or
(b) Calculate Arithmetic Mean and Median from the following data: 5+6=11
Daily Wages
No. of Workers
20-30
30-40
40-50
50-60
60-70
70-80
80-90
5
15
28
42
15
12
3

5. (a) What is dispersion? What are its measures? Mention the merits and demerits of mean deviation and standard deviation. 2+3+6=11
Or
(b) Calculate Standard Deviation from the following data:
Daily Wages
No. of Workers
30-40
40-50
50-60
60-70
70-80
80-90
90-100
1
4
14
20
22
12
2

6. (a) What is Index Number? Explain the various problems involved in the construction of Index Number.       2+9=11
Or
(b) Calculate Price Index Number for the year 2013 by using (i) Laspeyres and (ii) Fisher’s Ideal Index from the following data: 5+6=11
Goods
Price
Quantity
2013
2012
2013
2012
A
B
C
D
10
20
15
22
20
40
30
44
100
200
150
220
50
100
75
110

7. (a) What is interpolation? Explain the different methods of interpolation. 2+10=12
Or
(b) Using an appropriate formula for interpolation, estimate the expectation of life at the age of 16 years by using the following data: 12
Age (in years):
10
15
20
25
30
35
Expectation of life (in years):
35.4
32.3
29.2
26.0
23.2
20.4


***
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