Exam Details

Subject business statistics
Paper
Exam / Course b.b.a.(corporate secretaryship/ b.b.a.(cs)(lateral)
Department
Organization Alagappa University Distance Education
Position
Exam Date December, 2017
City, State tamil nadu, karaikudi


Question Paper

DISTANCE EDUCATION
B.B.A. (CS)/B.B.A. (Lateral) DEGREE EXAMINATION,
DECEMBER 2017.
BUSINESS STATISTICS
(2005 Onwards)
Time Three hours Maximum 100 marks
SECTION A — x 8 40 marks)
Answer any FIVE questions.
All questions carry equal marks.
1. Define-Dispersion. State the difference between
dispersion and skewness.
2. Calculate mean from the following data.
Value 1 2 3 4 5 6 7 8 9 10
Frequency 21 30 28 40 26 34 40 9 15 57
3. Calculate the range and semi-inter quartile range of
wages:
Wages 30-32 32-34 34-36 36-38
Labourers 12 18 16 14
Wages 38-40 40-42 42-44
Labourers 12 8 6
Also calculate the quartile co-efficient of dispersion.
Sub. Code
23
DE-2451
2
Sp 1
4. Calculate mean deviation from the following data:
x 2 4 6 8 10
f 1 4 6 4 1
5. Find the co-efficient of skewness from the data given
below:
Size 3 4 5 6 7 8 9 10
Frequency 7 10 14 35 102 136 43 8
6. Using any method of interpolation, estimate the business
done in April from the following data:
Month January February March May June
Business done

150 235 365 525 780
7. Construct an index number 2014 taking 2005 as base:
Commodity Price in 2014 Price in 2005
A 90 95
B 40 60
C 90 110
D 30 35
8. Calculate three yearly moving average of the following
data:
Year 2004 2005 2006 2007 2008 2009
No. of students 15 18 17 20 23 25
Year 2010 2011 2012 2013
No. of students 29 33 36 40
DE-2451
3
Sp 1
SECTION B — × 15 60 marks)
Answer any FOUR questions.
All questions carry equal marks.
9. What do you mean by Business Statistics? Explain in
details about its scope.
10. Find out the missing values of the variety for the
following distribution whose mean is 3 1.87
x 12 20 27 33 54
f 8 16 48 90 30 8
11. Calculate mean deviation and mean co-efficient of
dispersion from the following data:
Marks 10 15 20 30 40 50
Frequency 8 12 15 10 3 2
12. Calculate Standard Deviation from the following data:
Marks 10 20 30 40 50 60
No. of students 8 12 20 10 7 3
13. What is Index Number? List out the uses of index
numbers and problems in the construction of Index
Numbers.
14. Calculate trend values by the method of least square
from the data given below and estimate the sales for the
year 2017:
Year 2010 2011 2012 2013 2014
Sales of Co. A
(Rs. Lakhs)
70
74
80
86
90
15. Compute a price index for the following by a simple
aggregate and average of price relative method by
using both arithmetic mean and geometric mean:
Commodity A B C D E F
Price in 2012 20 30 10 25 40 50
Price in 2013 25 30 15 35 45 55



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Subjects

  • advanced accountancy
  • business statistics
  • capital market laws
  • commercial law
  • corporate finance
  • cost accounting
  • economic laws
  • financial services
  • secretarial practice
  • tax laws