Thursday, December 17, 2015

B.A. (Economics):Economic statics Annamalai University December 2014 Question Paper

Annamalai University december 2014 question paper
B.A. DEGREE EXAMINATION December 2014
(ECONOMICS)
(SECOND YEAR)
(PART – III)
640. ECONOMIC STATISTICS
(Ancillary)
(Including Double Degree)
Time: Three hours Maximum: 100 marks
Answer any FIVE questions (5 × 20 = 100)
1. Explain the origin of statistics and its importance in various departments.
2. Distinguish between census and sampling methods and bring out their
advantages and disadvantages.
3. Explain the methods of constructing cumulative distribution with an example.
4. Define graph. Explain its importance and rules for drawing a graph.
5. What are the measures of central tendency? Write down the requests for a good
average.
6. Calculate Co-efficient of Skewness by using Karl Pearson’s method for the given
data:
Class interval : 0-20 20-40 40-60 60-80 80-100
Frequency : 15 20 30 25 10
7. Distinguish between correlation and regression.
8. Calculate Spearman’s rank correlation co-efficient for the following data:
X : 80 88 95 90 88 92 100
Y : 100 100 105 109 128 110 120
9. Briefly explain the different methods of non-random sampling.
10. Elaborately discuss about the available statistics for finding the economic status
of the people in India.
2
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