B.B.A (Three Year) DEGREE EXAMINATION, MARCH/APRIL 2017.
End Semester Examination
Second Semester
Part II
QUANTITATIVE METHODS FOR MANAGERS
2 C 2402
Time 3 Hours Max. Marks 70
PART — A
Answer any FIVE of the following questions. 4 20 Marks)
1. Methods used in collecting primary data.
2. Give any five merits of geometric mean.
3. Linear and non-linear correlation.
4. Different types of sets.
5. Steps to calculate inverse of a matrix.
6. Uses or importance of graphs.
7. Absolute measures of skewness.
8. Probable error.
PART — B
Answer ALL the following questions. 10 50 Marks)
9. Define statistics. Explain its functions.
Or
Construct Histogram and Frequency polygon for the given data
C.I 0-10 10-20 20-30 30-40 40-50
f 10 25 45 19 8

10. Calculate mean and median for the following data
x 100-90 90-80 80-70 70-60 60-50 50-40 40-30
f 7 16 47 80 63 19 8
Or
Compute standard deviation and co-efficient of variation for the given data
Marks (more than) 0 10 20 30 40 50 60 70 80
No. of students 150 140 100 80 80 70 30 14 0
11. Calculate Karl Pearson's coefficient of correlation of the given data
X 8 10 14 17 20 22 26 30 33
Y 12 14 17 17 20 27 24 28 30
Or
Give the bivariate data
X 12 16 14 13 12 12 18 14
Y 17 12 11 11 12 13 12 16
Fit the regression line of on and predict if X 30
Fit the regression line of on and predict if Y 30
12. Out of 300 workers in a factory, 150 workers take tea and 90 workers take tea
but not coffee. Find the number of workers who take coffee and also test with
Venn diagram.