Dibrugarh University Question Paper - Economics - (Elementary Statistics for Economics) – Arts (Nov'2018)

2018

(November)

ECONOMICS

(General)

Course: 501

(Elementary Statistics for Economics)

Full Marks: 80

Pass Marks: 32/24

Time: 3 hours

The figures in the margin indicate full marks for the questions

1. Answer as directed:                                                   1x8=8

a)         Mention one limitations of median.

b)         Mention two sources of secondary data.

c)          The sum of the deviations measured from the mean is _________. (Fill in the blank)

d)         On which of the following extreme values have no effect?

1)         Arithmetic mean.

2)         Median.

3)         Geometric mean.

4)         Harmonic mean.

(Choose the correct answer)

e)         Which of the following is a unit less measure of dispersion?

1)         Standard deviation.

2)         Mean deviation.

3)         Coefficient of variation.

4)         Range.

(Choose the correct answer)

f)          If the minimum value in a series is 20 and the range of the series is 47, then the maximum value of the series is

1)         57.

2)         48.

3)         67.

4)         None of the above.

(Choose the correct answer)

g)         Index numbers reveal the state of

1)         Inflation.

2)         Deflation.

3)         Both (1) and (2).

4)         Neither (1) nor (2).

(Choose the correct answer)

h)         The dependent variate values in interpolation and extrapolation are termed as _________. (Fill in the blank)

2. Write short notes on any four of the following:                             4x4=16

a)         Primary data.

b)         Mode.

c)          Quartile deviation.

d)         Fisher’s ideal index.

e)         Census vs. sampling.

3. (a) Discuss the importance of Statistics in Economics and mention its limitations.           8+3=11

Or

(b) Distinguish between classification and tabulation of data. Illustrate the various components of a table with an example.                             5+6=11

4. (a) What do you mean by measures of central tendency? What are the different measures of central tendency? Which measures do you consider best and why?                            2+2+7=11

Or

(b) Determine median for the following distribution:                  11

Weekly Wages (Rs.)	50 – 55	55 – 60	60 – 65	65 – 70	70 – 75	75 – 80	80 – 85
No. of Workers:	6	10	22	30	16	12	15

 

5. (a) Define standard deviation. Why is it most commonly used as a measure of dispersion?     4+7=11

Or

(b) Calculate mean deviation from the following data:                                11

Age in year:	0 – 10	10 – 20	20 – 30	30 – 40	40 – 50	50 – 60	60 – 70
No. of Persons:	6	5	8	15	7	6	3

 

6. (a) What is index number? Explain the various problems involved in the construction of index number.         2+9=11

Or

(b) Construct Fisher’s ideal index with the help of the data given below:           11

	(Base Year)		(Current Year)
Articles	Price	Quantity	Price	Quantity
A B C D	6 2 4 10	50 100 60 30	10 3 6 13	56 125 64 24

 

7. (a) What are the basic methods of interpolation? Discuss the various methods of interpolation and point out their differences.                       4+8=12

Or

(b) Given below is the population of a District for different years. Estimate the population with the help of Newton’s forward interpolation formula for the year 1947:                               12

Year:	1941	1951	1961	1971
Population (in lakhs):	28.0	29.4	30.5	35.5

 

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