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Posted Date: 12 Aug 2012      Posted By:: keerthishree    Member Level: Silver    Points: 5 (Rs. 4)

2011 B.Com Bangalore University, 2th semester , bcom,Examination -May - 2011, Business Statistics Question paper



Course: B.Com   University/board: Bangalore University

Are you looking for the old question papers of BCom first year i.e, 2nd semester of Bangalore University. Here are some of my collection which help may for your preparation of exam . The question paper I submitted is question paper of Bcom 2nd semester of Bangalore University of Business Statistics of year 2011 . I think this may help you.



BANGALORE UNIVERSITY
2nd Semester .Bcom .Examination, May 2011
(semester scheme)
COMMERCE
Business Statistics
[Time : 3 Hours] [Max. Marks : 90] Instruction : Answers should be written completely either in English or Kannada.

SECTION-A
1. Answer any ten sub-questions. Each sub-question carries 2 marks. (10x2=20)
a) Define the term statistics singularly.
b) Mention the types of averages.
c) What is rank correlation?
d) Why Fishers index is called ideal?
e) List any four methods of studying variation.
f) If Z=90, median =40, find X (arithmetic mean).
g) If variance =36, ?X=150, N=10, find C.V.
h) If r=0.6 and N=64, find probable error.
i) What is nonsense correlation?
j) Mention the methods of calculating consumer price index numbers.
k) How range is calculated?
l) Average weight of 3 students is 60kgs. The weight of first two students is 50kg. and 60kg. respectively. Find the third student weight.

SECTION-B
Answer any five questions. Each question carries 5 marks. (5x5=25)
2.Find mode by grouping and analysis table.

Marks 20 30 40 50 60 70 80 90
Students 40 50 70 90 85 91 89 65

3.Calculate S.D. from the following :

Central size 15 25 35 45 55 65 75 85
Frequency 18 22 30 50 45 30 20 15

4.Find the class intervals if X (arithmetic mean) is found to be 35.84 and assumed mean 35.

Step Deviation -3 -2 -1 0 +1 +2 +3
Frequency 2 12 19 29 20 13 5

5.If X (arithmetic mean) is found to be 44.5 find the missing frequency

Weight in kgs 10 20 30 40 50 60 70
No. of Students 15 20 25 - 40 50 20

6.Calculate correlation co-efficient between density of population and death rate

Density of Population 200 500 400 700 600 300
Death Rate 10 16 14 20 17 13

7.Calculate cost of living index numbered from the following data.

Items Index Weights
Food 323.79 50.0
Clothing 310.00 10.0
Lighting 220.00 8.0
Rent 150.00 12.0
Miscellaneous 300.00 20.0

8. From the following data :
a) Calculate the regression equation X and Y.
b) Estimate the value of X when Y=40.
X 20 24 26 34 36
Y 10 12 14 18 26

9. Average rainfall at Gowribidanur from Monday to Saturday is 3 cm. Due to heavy rainfall on Sunday the average for the week increased to 5 cm. What was the rainfall on Sunday?

SECTION-C
Answer any three questions. Each question carries 15 marks. (3x15=45)

10. Ten competitors in a "Summer Fall Design Show" Gowribidanur are ranked by three Judges. Using rank correlation find out which pair of Judges have the nearest approach to the common taste in fashion design.

Judge A 1 3 2 5 8 7 9 4 10 6
Judge B 3 5 4 6 7 9 8 1 2 10
Judge C 5 6 2 3 8 7 10 4 1 9

11. Wages of 100 workers are given below. If median is found to be 33, find the missing frequencies.

Wages (in Rs.) 0-10 10-20 20-30 30-40 40-50 50-60 60-70
No. of Workers 12 15 - 20 - 10 10

12. Compute Fishers Ideal Index and show that it satisfies the reversability tests.


Items Base year Current year
Value Quantity Value Quantity
A 300 150 480 4
B 50 10 90 6
C 48 12 50 5
D 120 60 100 2
E 60 20 105 3.5


13. Find from the following the most consistent Batsman and better run getter

Batsman A 5 7 16 27 39 53 56 61 80 101 105
Batsman B 0 4 16 21 41 43 57 78 83 90 95

14. Find the value of mean , median and mode from the following :

Weight in kgs 71-75 76-80 81-85 86-90 91-95 96-100 101-105 106-110 111-115
No. of Students 3 10 15 18 25 19 14 9 2





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