Tuesday, June 28, 2016
Roll No.......................
Total No.
of Questions : 07
B.Com. (Sem.–2nd)
BUSINESS STATISTICS
Subject Code
: BCOP-204 (2011
& Onward)
Paper ID
: [B1120]
Time :
3 Hrs.
INSTRUCTION TO
CANDIDATES :
1.
SECTION-A is COMPULSORY
consisting of TEN
questions carrying TWO marks
each.
2.
SECTION-B contains SIX
questions carrying TEN marks each
and students has to
attempt any FOUR
questions.
SECTION-A
l.
Answer briefly :
a. Distinguish between
continuous and discrete variables.
b. What is the
difference between descriptive and inferential statistics?
c. Define secondary
data. What are the sources of secondary data?
d. What do you mean by
a frequency distribution?
e. What purpose does
classification of data serve?
f. What is the
difference between bar chart and histogram?
g. What is the function
of calculating measures of central tendency?
h. Compare mean, median
and mode.
i. Distinguish between
positive and negative Skegness.
j.
Which of
the two, correlation
and regression analysis,
has more practical significance?
SECTION-B
2. Discuss the main functions and
limitations of statistics. Discuss the important causes of misuse of
statistics.
3. Define secondary data. What are the
sources of secondary data? Describe the precautions required for using
secondary data.
4.
What
do you mean
by a frequency distribution?
Distinguish between a discrete frequency distribution
and a continuous frequency
distribution. Give examples.
5. For
the following data predict sales for year 2009 and interpret
the trend line
|
Year
|
1997
|
1998
|
1999
|
2000
|
2001
|
2002
|
2003
|
2004
|
2005
|
2006
|
|
Sale (Rs million)
|
7.84
|
12.26
|
13.11
|
15.78
|
21.29
|
25.68
|
23.80
|
26.43
|
29.16
|
33.06
|
6.
Explain the concept of regression. What is its importance in the business and
economic decision making?
7. How
to decompose time-series
data into their
various elements and to
forecast by using decomposition techniques?
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