Wednesday, August 31, 2016
Total No. of Questions : 07
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.
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
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
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
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