Business Statistics Question Paper of 3rd Semester BBA Download Previous Years Question Paper 8

Roll No.

Total No. of Questions : 07

BBA (Sem.–3rd)

BUSINESS STATISTICS

Subject Code : BB-304

Paper ID : [C0216]

Time : 3 Hrs.

INSTRUCTION TO CANDIDATES :

1. Section –A, is Compulsory.

2. Attempt any four questions from Section-B.

Section –A

Q. 1. Answer Briefly:

(a) Presentation of data

(b) Two characteristics a god average should poses .

(c) Two properties of regression coefficients.

(d) Two limitations of index number?

(e) The mean of 75 observations is 27. Later on it was discovered that one observation was wrongly read as 43 instead of the correct value was 53. Find the correct mean.

(f) Probable error of r.

(g) Splicing

(h) Multiplicative theory of probability.

(i) Two conditions under which poison distribution is used

(j) Represent he following data by a simple bar diagram:

Year	2006-07	2007-08		2008-09		2009-10		2010-11	2011-12
Service Tax	38000		51000	60000	58000		69000		8000

Section-B

Q. 2. Define classification of table. Explain the purpose and methods of classification giving suitable examples.

Q. 3. Consider the following distribution:

         

X	0-10	10-20	20-30	30-40	40-50
Y	12	18	20	25	23

Compute mean, median and mode.

Q. 4. (a) What is Dispersion? What purpose does a measure of dispersion serve?

(b) Distinguish between mean deviation and standard deviation

Q. 5. From the following data obtain the regression equation Y on X.

X	40	50	38	60	65	50	35
Y	38	60	55	70	60	48	30

Also estimate Y when X=5

Q. 6. Calculate the trend values by the method of least squares. Also calculate the monthly increase in sales & trend values for 2012.

    

Year	2001	2002	2003	2004	2005	2006	2007
Sales	125	128	133	135	140	141	143

Q. 7. (a) A bag contains 8 white and 4 red balls. Five balls are drawn at random. What is the probability that 2 of them are red and 3 white?

(b) A problem in statistics is given to five students A, B, C, D and E. Their chances of solving it are ½, 1/3, ¼, 1/5 and 1/6. What is the probability that he problem will be solved?