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Free download in PDF Central Tendency Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
1
Any measure indicating the centre of a set of data, arranged in an increasing or decreasing order of magnitude, is called a measure of:
A
Skewness
B
Symmetry
C
Central tendency
D
Dispersion
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2
Scores that differ greatly from the measures of central tendency are called:
A
Raw scores
B
The best scores
C
Extreme scores
D
None of the above
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3
While computing the arithmetic mean of a frequency distribution, the each value of a class is considered equal to:
A
Class mark
B
Lower limit
C
Upper limit
D
Lower class boundary
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4
The measure of central tendency listed below is:
A
The raw score
B
The mean
C
The range
D
Standard deviation
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5
The population mean ยต is called:
A
Discrete variable
B
Continuous variable
C
Parameter
D
Sampling unit
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6
If a constant value is added to every observation of data, then arithmetic mean is obtained by:
A
Subtracting the constant
B
Adding the constant
C
Multiplying the constant
D
Dividing the constant
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Answer: Adding the constant
7
The elimination of extreme scores at the bottom of the set has the effect of:
A
Lowering the mean
B
Raising the mean
C
No effect
D
None of the above
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8
The elimination of extreme scores at the top of the set has the effect of:
A
Lowering the mean
B
Raising the mean
C
No effect
D
Difficult to tell
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Answer: Lowering the mean
9
The sum of deviations taken from mean is:
A
Always equal to zero
B
Some times equal to zero
C
Never equal to zero
D
None of the above
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Answer: Always equal to zero
10
The sum of the squares fo the deviations about mean is:
A
Zero
B
Maximum
C
Minimum
D
All of the above
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11
The sum of the squares of the deviations of the values of a variable is least when the deviations are measured from:
A
Harmonic mean
B
Geometric mean
C
Median
D
Arithmetic mean
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12
Step deviation method or coding method is used for computation of the:
A
Arithmetic mean
B
Geometric mean
C
Weighted mean
D
Harmonic mean
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13
When the values in a series are not of equal importance, we calculate the:
A
Arithmetic mean
B
Geometric mean
C
Weighted mean
D
Mode
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14
When all the values in a series occur the equal number of times, then it is not possible to calculate the:
A
Arithmetic mean
B
Geometric mean
C
Harmonic mean
D
Weighted mean
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15
The mean for a set of data obtained by assigning each data value a weight that reflects its relative importance within the set, is called:
A
Geometric mean
B
Harmonic mean
C
Weighted mean
D
Combined mean
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16
The arithmetic mean of 10 items is 4 and the arithmetic mean of 5 items is 10. The combined arithmetic mean is:
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17
The midpoint of the values after they have been ordered from the smallest to the largest or the largest to the smallest is called:
A
Mean
B
Median
C
Lower quartile
D
Upper quartile
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18
The first step in calculating the median of a discrete variable is to determine the:
A
Cumulative frequencies
B
Relative weights
C
Relative frequencies
D
Array
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19
Extreme scores will have the following effect on the median of an examination:
A
They may have no effect on it
B
They may tend to raise it
C
They may tend to lower it
D
None of the above
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Answer: They may have no effect on it
20
We must arrange the data before calculating:
A
Mean
B
Median
C
Mode
D
Geometric mean
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