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Question-1
Which is not a merit of arithmetic mean ?
(A)
It is simpler to understand and easy to calculate
(B)
It is affected by extreme items
(C)
It is good base for comparison
(D)
It is a calculate value
Question-2
The most stable measure of variability is
(A)
Variance
(B)
Mean
(C)
Median
(D)
Mode
Question-3
Range is the:
(A)
Ratio of the largest to the smallest observations
(B)
Average of the largest to smallest observations
(C)
Difference between the smallest and the largest observations
(D)
Difference between the largest and the smallest observations
Question-4
__________ is the positive square root of the mean of squared deviations from mean.
(A)
Mean deviation
(B)
Standard deviation
(C)
Quartile deviation
(D)
Mode
Question-5
Write the false statement:
(A)
Range is the easiest and simplest measure because it is the difference between two extreme items.
(B)
Quartile deviation is superior to the range as it is not affected too much by the value of extreme items.
(C)
Range and quartile deviation are based on all the items of series.
(D)
Range and quartile deviation are useful for general study of variability.
Question-6
Median can be calculated from :
(A)
Individual series
(B)
Discrete series
(C)
Continuous series
(D)
All the above
Question-7
The statistical tool to measure changes over time is
(A)
Averages
(B)
Index number
(C)
Deviation
(D)
Variance
Question-8
There is no correlation when:
(A)
All the points lie on a straight line rising from left to right
(B)
All the points lie on a narrow band rising from left to right
(C)
All the points are scattered all over the graph
(D)
When all the points are following a narrow band from left to right
Question-9
Q
1
represents:
(A)
Lower quartile
(B)
First quartile
(C)
Both (a) and (b)
(D)
Neither (a) or (b)
Question-10
The range of simple correlation coefficient is:
(A)
Minus infinity to infinity
(B)
0 to infinity .
(C)
Minus one to plus one
(D)
0 to hundred
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Plus 1 Humanities
Tamil Nadu (English Medium)
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Industrial Sector
National Income
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