Annamalai University 2007 B.B.A Quantitative Methods - Question Paper

PART -C

Answer any TWO questions.

All questions carry equal marks.

19. Find mean, median and mode for the following:

Name of the Candidate :

7 3 7 9 B.B.A. DEGREE EXAMINATION, 2007

(SECOND YEAR)

(PART - III)

( PAPER - VIII)

260. QUANTITATIVE METHODS

(Including Lateral Entry )

May ]    [ Time : 3 Hours

Maximum : 100 Marks

PART-A (10x2 = 20)

Answer any TEN questions.

All questions carry equal marks.

1.    State any two uses of statistics in business.

2.    What do you mean by sampling ?

3.    Define Median.

4.    Give the formula for Semi - interquartile range.

5.    What is correlation?

6.    Write a note on Time series.

7.    Write down any two characteristics of index number.

8.    State the Addition theorem on probability.

9.    What is normal distribution?

10.    Define finite set.

11.    If

A =

and B =

find A + B.

12. If

A = [1, 2, 4, 6, 8] ; B = [2, 3, 4, 5, 6], find A n B.

Answer any FOUR questions.

All questions carry equal marks.

13.    What are the disadvantages of graphical presentation ?

14.    What is Venn diagram? - Illustrate.

15.    Calculate mean deviation about the mean for the following data:

x:	5	15	25	35	45	55	65
f:	8	12	10	8	3	2	7

16. From the data given below, calculate Spearmans rank correlation co-efficient:

Marks in Maths :	85	60	73	40	90
Marks in Accountancy :	93	75	65	50	80

17. Calculate Fishers Ideal Index Number:

	- 05	2005 - 06
	Price (Rs.)	Quantity (Units)	Price (Rs.)	Quantity (Units)
A	2	74	3	82
B	5	125	4	140
C	7	40	6	33

20. Fit a straight line trend by the method of least squares and estimate the trend components. What is the estimated value in 2008 ?

Year :	2000	2001	2002	2003	2004	2005	2006
Value:	23	22	25	21	17	20	19

21.    The probabilities of 3 students A, B, and C

solving a problem in statistics are 1

and . A problem is given to all the 3 students, what is the probability that,

(i)    No one will solve the problem ?

(ii)    Only one will solve the problem ?

(iii)    Atleast one will solve the problem ?

22.    Solve the following system of simultaneous equation by Cramers rule :

2x + 3y + 3z = 22

x - y + z = 4

20. Fit a straight line trend by the method of least squares and estimate the trend components. What is the estimated value in 2008 ?

Year :	2000	2001	2002	2003	2004	2005	2006
Value:	23	22	25	21	17	20	19

21.    The probabilities of 3 students A, B, and C

solving a problem in statistics are 1

and . A problem is given to all the 3 students, what is the probability that,

(i)    No one will solve the problem ?

(ii)    Only one will solve the problem ?

(iii)    Atleast one will solve the problem ?

22.    Solve the following system of simultaneous equation by Cramers rule :

2x + 3y + 3z = 22

x - y + z = 4

4x + 2y - z = 9

Attachment: annamalai-university-2007-b-b-a-15353-1.pdf

Earning:   Approval pending.