Loyola College B.A. Economics April 2007 Quantitative Tools For Economics Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.A.

RF 51

DEGREE EXAMINATION –ECONOMICS

THIRD SEMESTER – APRIL 2007

EC 3500 – QUANTITATIVE TOOLS FOR ECONOMICS

 

 

Date & Time: 21/04/2007 / 1:00 – 4:00              Dept. No.                                                      Max. : 100 Marks

 

 

PART – A

 

Answer any FIVE questions in about 75 words each.                      (5 x 4 = 20 Marks)

 

  1. Define statistics.
  2. Distinguish between primary data from secondary data.
  3. What are the objectives of classification and tabulation?
  4. What do you mean by the term average?
  5. What is harmonic mean?
  6. Define Karl Pearson’s coefficient of Skewness.
  7. What do you mean by index number?

PART – B

 

Answer any FOUR questions in about 250 words each.                  (4 x 10 = 40 Marks)

 

  1. Discuss the limitations of statistics.
  2. For the following data obtain the mean by deviation method.

X:   75        50        47        43        25

f:    3          1          1          3          2

  1. Locate the mode from the following data.

X:   10-20   20-30   30-40   40-50   50-60

f:        3          4         10        5          2

  1. For the following data calculate inter quartile deviation and its coefficient.

X: 10          30        50        70        90

f:    5          7          15        20        20

  1. Explain the types of correlation with economic illustration.
  2. Explain the difference between correlation and regression.
  3. Explain the major components of a time series.

 

PART – C

 

Answer any TWO questions in about 900 words each.                    (2 x 20 = 40 Marks)

 

  1. Briefly explain the method of data collection.
  2. For the following data calculate Bowley’s Coefficient of skewness:

X:   0-10     10-20   20-30   30-40   40-50

f:      4            7         10         8          5

  1. From the following data obtain the regression line Y on X and X on Y:

X:   1          2          3          4          5

Y:   6          10        14        18        22

  1. Analyse the method of constructing index numbers.

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