Annamalai University 2007 B.A Economics 640 STATISTICS - Question Paper

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ANNAMALAI UNIVERSITY

B.A. DEGREE EXAMINATION, 2007

ECONOMICS

640. ECONOMICS STATISTICS

Register Number:

Name of the Candidate :

7 0 5 0 B.A. DEGREE EXAMINATION, 2007

(ECONOMICS)

(SECOND YEAR)

(PART - III)

( PAPER - IV )

640. ECONOMICS STATISTICS

( Ancillary )

(Including Lateral Entry )

May ] [ Time : 3 Hours

Maximum : 100 Marks

Answer any FIVE questions.

All questions carry equal marks.

1. Define statistics and describe the importance of statistics for economic analysis and planning.

2. Bring out the differences between primary and secondary data and explain the requisites of a good questionnaire.

3. Distinguish between classification and tabulation of data and explain the essential parts of a statistical table.

4. Explain the rules for construction of diagrams and illustrate how line and bar diagram has to be drawn ?

5. Explain the properties of arithmetic mean and calculate arithmetic mean for the following data:

X	Y
100 - 120	10
120 - 140	8
140 - 160	4
160 - 180	4
180 -200	3
200 - 220	1
220 - 240	2

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6. Bring out the differences between dispersion and skewness. Calculate Karl Pearsons co-efficient of skewness for the following :

7. Calculate the correlation co-efficient for the following data:

X	y
12	14
9	8
8	6
10	9
11	11
13	12
7	8

8. Define the term association of attributes and explain how it is measured.

9. Define sampling and explain the different types of random sampling with its advantages.

10. Explain the role of agricultural statistics in India.

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