Tamil Nadu Open University (TNOU) 2009-2nd Year B.Com .>>Bank Management BUSINESS STATISTICS>>E, .>> - Question Paper

B.Com. DEGREE exam –
JUNE, 2009.
Second Year
(AY 2007–08 batch onwards)
Bank Management
BUSINESS STATISTICS
Time : three hours Maximum marks : 75
ans for five marks ques. should not exceed two pages.
ans for 15 marks ques. should not exceed five pages.

part A — (3 × five = 15 marks)
ans any 3 ques..
1. elaborate the limitations of statistics?
2. State the different methods of collecting primary data.
3. elaborate the advantages of diagrammatic representation of statistical data?
4. compute the arithmetic mean for the subsequent data.
Age in years eight 10 12 15 18
No. of five seven 12 six 10
persons
5. What is an index number? elaborate its uses?

part B — (4 × 15 = 60 marks)
ans any 4 ques..

6. compute Arithmetic mean and standard deviation
for the subsequent data :
Class : 10-15 15-20 20-25 25-30 30-35 35-40
Frequency : two eight 20 35 20 15

7. The marks of eight students in statistics and
accountancy are provided beneath. compute Pearson’s
correlation coefficient.
Marks in Statistics : 70 48 58 55 54 50 60 52
Marks in Accountancy : 62 47 53 60 55 68 51 48

8. beneath are provided the figures of sales of a certain
shop :
Year : 2001 2002 2003 2004 2005 2006 2007
Sales in rupees
(000’) 125 128 133 135 140 141 143
obtain pattern values by the method of lowest squares.

9. compute :
(a) Laspeyre’s Index Number
UG–734 3
Wk 14
(b) Paasche’s Index Number
(c) Fisher’s ideal Index Number.
2006 2007
Commodity Price volume Price volume
Rs. Kgs. Rs. Kgs.
A 20 15 30 10
B 30 18 40 15
C 10 20 45 10
D 15 25 25 5

10. Briefly discuss the components of time series.

11. obtain the yield when rainfall is 80 inches by using
regression formula :
Mean S.D
Yield in Kgs per acre 800 12
Rainfall in inches 50 2
Coefficient of correlation 0.8

12. Write short notes on :
(a) Pie-diagrams
(b) Mean-deviation
(c) Seasonal variations.

––––––––––––––––

Earning:   Approval pending.