Business Statistics Question Paper of 3rd Semester BBA Download Previous Years Question Paper 2

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

Q1)

a) What are the advantages of graphical representation of statistical data?

b) State the empirical relation between mean, median and mode.

c) Define coefficient of variation.

d) Differentiate between correlation and regression

e) What do you mean by Bayes' theorem?

f) What are the characteristics of normal distribution?

g) Distinguish between linear and non linear correlation.

h) What do understand by Binomial distribution? What are its features?

i) Why is the measurement of seasonal variation called problem of averages.

j) Why Standard deviation is considered to be the best in comparison with

other measures.

Q2) Represent the following data by means of a histogram

Weekly wages: 10-15 15-20 20-25 25-30 30-45 40-60 60-80

No. of Workers: 7     19      27      15      12      12      8

Q3) Find the average or mean deviation from the median for the following

distribution.

Marks less than: 80 70 60 50 40 30 20 10

No. of students: 100 90 80 60 32 20 13 5

Q4) a) A problem in statistics is given to three students A,B and C, whose

chances of solving it are ll3,ll4 and ll5 respectively. Find the probability

that problem will be solved.

 (b) State and prove multiplicative law of probability.

Q5) Calculate the coefficient of correlation for the ages of husbands and wives:

Age of Husband(years):23, 27, 28, 29, 30, 31, 33, 35, 36, 39

Age of Wife (years): 18, 22, 23, 24, 25, 26, 28, 29, 30, 32

Q6) Given the following information:

(a) Compute price index and quantity Index numbers for the year2000 with

1995 as base year, using

(i) Laspsyer’s Method

(ii) Paasche's Method

(b) Also compute Fisher's price and quantity index numbers.

Commodity               Quantity                       Value(Rs.)

                                   1995   2000        1995  2000

A                                 100  150             500    900   

B                                         80      100             320    500

C                                         60      72               150    360   

D                                        30      33               360    297

Q7) Discuss briefly the importance of time series analysis in business and

economics. What are the components of Time series? Give an example of

each component.