Annamalai University 2007 B.A Economics , -university question paper

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B.A. DEGREE EXAMINATION, 2007
( ECONOMICS )
( 2nd YEAR )
( PART - III )
( PAPER - IV )
640. ECONOMICS STATISTICS
( Ancillary )
( Including Lateral Entry )
May ] [ Time : three Hours
Maximum : 100 Marks
ans any 5 ques..
All ques. carry equal marks. [5 X 20 = 100]
1. describe statistics and define the importance of statistics for economic analysis and planning.
2. Bring out the differences ranging from primary and secondary data and discuss the requisites of a good questionnaire.
3. Distinguish ranging from classification and tabulation of data and discuss the essential parts of a statistical table.
4. discuss the rules for construction of diagrams and illustrate how line and bar diagram has to be drawn ?
5. discuss the properties of arithmetic mean and compute arithmetic mean for the subsequent data :
100 – 120 10
120 - 140 8
140 - 160 4
160 - 180 4
180 - 200 3
200 - 220 1
220 - 240 2

6. Bring out the differences ranging from dispersion and skewness. compute Karl Pearsons
co-efficient of skewness for the subsequent :
X Y
1 12
2 18
3 35
4 22
5 18

7. compute the correlation co-efficient for the subsequent data :
X Y
12 14
nine eight
eight 6
10 9
11 11
13 12
seven 8
8. describe the term association of attributes and discuss how it is measured.
9. describe sampling and discuss the various kinds of random sampling with its advantages.
10. discuss the role of agricultural statistics in india.

Earning:   Approval pending.