Tamil Nadu Open University (TNOU) 2009-2nd Year B.Sc Fashion Technology and Costume Designing B.Com.>>Accounting of Finance/Computer Applications BUSINESS STATISTICS>>E .>> - Question Paper

B.Com. DEGREE exam
JUNE 2009.
(AY 2007-08 batch onwards)
Second Year
Accounting of Finance/Computer Applications
BUSINESS STATISTICS
Time : three hours Maximum marks : 75

PART A — (3 ´ five = 15 marks)
ans any 3 ques..
1. Write a note on misuses of statistics.
2. elaborate the methods used for the collection of primary data?
3. elaborate the demerits of geometric mean?
4. The subsequent are the Ranks found by 10 students in statistics and Mathematics.
Statistics : one two three four five six seven eight nine 10
Mathematics : one four two five three nine seven 10 six 8
compute Rank Correlation.
5. compute by Simple Aggregate Method, index
number for the year 2002 based on 2001
Commodity Unit 2001 2002
Rs. Rs.
Rice Quintal 250 300
Wheat Quintal 100 125
Pulses Quintal 200 300
Commodity Unit 2001 2002
Rs. Rs.
Oil Litre 150 200
Milk Litre 250 350

PART B — (4 ´ 15 = 60 marks)
ans any 4 ques..
6. describe Mean, Median and Mode. explain their merits and demerits.
7. compute the Quartile Deviation and its coefficient from the subsequent data :
Class : 10–20 20–30 30–40 40–50 50–60
Frequency : 16 38 10 eight 8
8. The subsequent table provide age (X) in year of cars and annual Maintenance Cost Y (in hundred rupees)
X : one three five seven 9
Y : 15 18 21 23 22
Estimate the maintenance cost for four year old car after
finding the Regression formula.
9. elaborate the issues faced in the construction of Index Numbers?
10. compute correlation co-efficient for the subsequent data :
X : 10 15 20 25 30 35 40
Y : 30 37 38 42 45 47 22
11. compute mode for the subsequent data :
Class : 5–15 15–25 25–35 35–45 45–55
Frequency : five 10 20 eight 7
12. Write short notes on :
(a) Square Diagram
(b) Components of Time Series
(c) Time Reversal Test.
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Earning:   Approval pending.