Central Tendency MCQs | Central Tendency Multiple Choice Questions and Answers

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Questions
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

Answer: Central tendency
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

Answer: Extreme scores
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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

Answer: Lower limit
4 The measure of central tendency listed below is:
A The raw score
B The mean
C The range
D Standard deviation

Answer: The mean
5 The population mean ยต is called:
A Discrete variable
B Continuous variable
C Parameter
D Sampling unit

Answer: Parameter
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

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

Answer: Raising the mean
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

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

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

Answer: Minimum
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

Answer: Arithmetic mean
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

Answer: Arithmetic mean
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

Answer: Weighted mean
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

Answer: Weighted mean
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

Answer: Weighted mean
16 The arithmetic mean of 10 items is 4 and the arithmetic mean of 5 items is 10. The combined arithmetic mean is:
A 4
B 5
C 6
D 90

Answer: 6
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

Answer: Median
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

Answer: Array
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

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

Answer: Median

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