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
QI)
a) What are the advantages of graphic
presentation of data?
b) What are the general rules in
construction of a statistical table?
c) What are the characteristics of a good measure
of central tendency?
d) Explain the conditions under which the
use of harmonic mean is more
suitable.
e) Define coefficient of variation.
f) What are the merits and demerits of
Spearman's rank correlation
method?
g) What do you mean by regression analysis?
h) Define Index Number.
i) What are the uses of time series
analysis?
j) What is classical approach to
probability?
Section – B
2)
Find out Arithmetic mean form the following data:
Wages (Rs.) f
103.5-107.5 7
107.5-111.5 18
111.5-115.5 27
115.5-119.5 49
119.5-123.5 52
123.5-127.5 23
127.5-131.5 16
131.5-135.5 5
135.5-139.5 3
3) Calculate the value of Mean deviation
from the mean using the following data
X:32, 21 38 25 20 32 34 28 40 29
Q.4) Find out
Karl Pearson’s coefficient of correlation between wages and supply of labour in
the labour market.
Wages(Rs.): 20 23
2-l 31 35 38 40 42
Labour
Supply (in Numbers) : 18 20 24 30 32 34 36 38
Q5) From the
following data, calculate index number 'for year' 2,007 in relation to prices
in 2005.
Commodity: A
B C D E
Prices in 2005 (Rs.) :100 118
20 200
105
Prices in2007 (Rs.) : 105 12A
25 200 110
Q6)
Calculate 3-year moving Average from the following data:
Q7)
Year: 1990 1991 1992 1993 1994 1995 1996
1997 1998 1999
Production: 47 48 51 55 57 6t 65 70 76 84
Define Binomial Distribution. What are the
properties of Binomial
Distribution?
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