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Bachelor of Business Administration
– BBA Semester 1, Summer 2015
BBA104 – Quantitative Techniques in
Business – 2 Credits
(Book ID: B1500)
Assignment - 30 marks
Note: Answer all questions. Kindly
note that answers for 10 marks questions should be approximately of
400 words. Each question is
followed by evaluation scheme.
Q1.
What do you mean by Measures of Central Tendency? Explain the Measures of
Central Tendency.
Meaning
of Measures of Central Tendency, Explanation of the Measures of Central
Tendency (Arithmetic Mean, Geometric Mean, Median, Mode) (3,7 )10 marks
Answer.
Measures
of Central Tendency
The most
important objective of statistical analysis is to determine a single value for
the entire mass of data, which describes the overall level of the group of
observations. It is a single figure and describes the entire series of
observations with their varying sizes. A single number describing some features
of a frequency distribution is called descriptive statistics. There are various
ways in which frequency curves can differ from one another. Even though the
„general‟ shapes of the curves are the same (the area under them is already
made equal by the strategy of plotting the percent density), the details of the
shape may change. Fig 3.1 shows the
Q2. Briefly explain the following:
a) Cumulative frequency
distribution
b) Pie Chart
c) Bar Chart
d) Histogram
e) Frequency polygon
(Explanation of Cumulative
frequency distribution, Explanation of Pie Chart, Explanation of Bar Chart,
Explanation of Histogram, Explanation of Frequency polygon) (2, 2, 2, 2, 2) 10
marks
Answer.
Cumulative frequency distribution
Cumulative
frequency distribution
The
cumulative frequency distribution is a modified form of frequency distribution,
as shown in table 2.3. In a given row,
Q3.
a. Explain the methods of determining trend in time series.
b.
Fit a straight line trend by method of least squares to the following data:
Year 2000
2001 2002 2003 2004
Production
(in lakhs) 4 6 9
10 11
(Meaning
of Trend Methods of determining Trend, Fitting a straight line trend by method
of least squares) (2, 3, 5) 10 marks
Answer.
a) Trend Methods of
determining Trend
b)
There
are four possible methods of secular trend which are the following:
c)
1.
Free hand method or graphic method
d)
2.
Semi-average method
e)
3.
Moving average method
f) 4.
Least square method of fitting mathematical curves
Free hand method
or graphic method
In free hand method the
given data are plotted as points on a graph paper against time. The time series
data (y) are shown along the vertical axis and time (t) along horizontal axis.
Then a smooth free hand curve is drawn through the scatter of the plotted
points, appearing to represent their pattern of movement over time. This
Get fully solved assignment. Buy online from website
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125/subject and rs 625/semester only.
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