Madras University (UnOM) 2004 B.Com Model 1 Business Statistics and Operation Research - Question Paper

MADRAS UNIVERSITY
B.Com Degree exam

Business Statistics and Operation Research
Model paper-1







Time : 3 Hours Maximum : 100 marks

SECTION-A
all ques. carry eight marks
ans any 5 ques.

1. elaborate the methods of classification of data?

2. compute arithmetic mean of the weight of ten students in a class.
Weight (in kgs.): 42 56 49 50 49 53 52 48 47 54

3. compute median marks from the subsequent data.
35 46 29 57 60 73 20 59 50 70

4. compute index number by Kelly's method.
2001 2002
Commodity Price volume Price volume
(in Rs.) (in Rs.)

A 10 20 12 16
B 15 10 18 12
C 12 15 15 9
D 25 five 20 11
E 30 three 28 five
F 20 10 15 8

5. compute quartile deviation from the subsequent data.
25 15 30 45 40 20 50

6. From the subsequent data compute Karl Pearson's coefficient of skewness.
40 36 42 53 20 65 67 20 36

7. compute Karl Pearson's coefficient of correlation.
X : 25 10 20 32 50 28 26 14 12 13
Y : 15 12 19 26 23 22 13 10 15 5

8. Fit pattern line through semi avg. method.
Year : 1985 86 87 88 89 90 91 92
Income: 45 49 54 60 80 96 100 120

SECTION-B
all qestions carry 20 marks
ans any 3 ques.

9. obtain out the literates by graphic method for the year 1982.

Year : 1965 70 75 80 85 90
No. of literates : 47 59 63 78 92 112

10. A coin is tossed seven times. obtain the probability of obtaining (a) six heads (b) seven heads and (c) five or more heads

11. Solve the subsequent transportation issue.
From To
A B C Available
I 50 30 220 1
II 90 45 170 3
III 250 200 50 4
Requirement 4 2 2

12. compute geometric mean and harmonic mean fron the data provided beneath.
42 57 115 127 39 55

13. State the different methods of ascertaining the regression equation?

Earning:   Approval pending.