M.A. (Semester (CBCS) Examination Nov/Dec-2018
Economics
QUANTITATIVE TECHNIQUES FOR ECONOMICS I
Time: 2½ Hours Max. Marks: 70
Instructions: All questions are compulsory.
Figures to the right indicate full marks.
Q.1 Choose the correct option: 14
The Arithmetic mean is highly affected by
Moderate values Extremely small values
Odd values Extremely large values
The sum of deviation taken from mean is
Always equal to zero Sometimes equal to zero
Never equal to zero Less than zero
The midpoint of the values after they have been ordered from the smallest
to the largest or largest to the smallest is called as
Mean Median
Lower quartile Upper quartile
Suitable average for quantitative data is
Mean Median
Mode None of these
Continuous series of data
Items comes individually
Items come with their corresponding frequency
All the class intervals along with their corresponding frequency
None of these
Standard deviation is denoted by
Small Capital
Σ Σ
If the mean is 20 and standard deviation is 5 the C.V (Co-efficient of
variance)
100% 25%
20% None of these
The scatter in series of values around the central point is called as
Measure the dispersion Measure the central tendency
Measure the Skewness Measure the Kurtosis
The measure of dispersion which uses only two observations such as
maximum values and minimum values is called as
Range Mean
Median Co-efficient of variance
10) Dispersion is the measures
Variance Average value
Occurs most frequently None of these
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SLR-HS-2
11) Co-efficient of variance



∗ 100


∗ 100






12) In the regression equation the y is called as
Independent variable Dependent variable
Quantitative variable None of these
13) If the two series move in reverse direction, it is called as
Negative correlation Positive correlation
Perfect correlation None of these
14) Regression analysis
Establishes cause and effect
Measures the growth
Establishes a relationship between two variable
Measures the demand for a goods
Q.2 Short notes (any 4 out of 16
Importance of quantitative techniques
Mode
Individual series
Cumulative frequency
Range
Positive correlation
Q.3 Short answer types questions (any 2 out of 12
Calculate the arithmetic mean from following given a data
X 10-20 20-30 30-40 40-50 50-60
F 3 7 11 9 6
Calculate the median value from following given a data
X 20 30 40 50 60 70 80
F 4 7 21 34 25 12 3
Calculate the range and Co-efficient of range from following given a data
X 1 2 3 4 5 6 7 8 9 10
F 26 113 120 95 60 42 21 14 5 4
Calculate the Spearman's Co-efficient of rank correlation for the following
data.
X 54 99 96 82 76 62 60 56
Y 48 26 33 38 31 40 38 46
Q.4 Descriptive Types questions solve (any any 1 out of 14
Calculate the mode value from following given a data.
X 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90
F 2 18 30 45 35 20 6 4
Calculate the regression equation.
X 1 2 3 4 5 6 7 8 9
Y 9 8 10 12 11 13 14 16 15
Q.5 Answer the following questions 14
Calculate standard deviation Co-efficient of standard deviation and variance
from following given a data.
X 10-20 20-30 30-40 40-50 50-60 60-70 70-80
F 5 10 20 40 30 15 10