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Free download in PDF Central Tendency Objective Type 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..
(21)
The values of the variate that divide a set of data into four equal parts after arranging the observations in ascending order of magnitude are called:
[A]
Quartiles
[B]
Deciles
[C]
Percentiles
[D]
Difficult to tell
(22)
The middle value of an ordered series is called:
[A]
Median
[B]
5th decile
[C]
50th percentile
[D]
All the above
(23)
The mode or model value of the distribution is that value of the variate for which frequency is:
[A]
Minimum
[B]
Maximum
[C]
Odd number
[D]
Even number
(24)
Suitable average for averaging the shoe sizes for children is:
[A]
Mean
[B]
Mode
[C]
Median
[D]
Geometric mean
(25)
Extreme scores on an examination have the following effect on the mode:
[A]
They tend to raise it
[B]
they tend to lower it
[C]
They have no effect on it
[D]
difficult to tell
Answer: They have no effect on it
(26)
A distribution with two modes is called:
[A]
Unimodel
[B]
Bimodal
[C]
Multimodal
[D]
Normal
(27)
For moderately skewed distribution, the value of mode is calculated as:
[A]
2Mean 3Median
[B]
3Median 2Mean
[C]
2Mean + Mode
[D]
3Median - Mode
(28)
If the values of mean, median and mode coincide in a unimodel distribution, then the distribution will be:
[A]
Skewed to the left
[B]
Skewed to the right
[C]
Multimodal
[D]
Symmetrical
(29)
A curve that tails off to the right end is called:
[A]
Positively skewed
[B]
Negatively skewed
[C]
Symmetrical
[D]
Both (b) and (c)
Answer: Positively skewed
(30)
The sum of the deviations taken from mean is:
[A]
Always equal to zero
[B]
Some times equal to zero
[C]
Never equal to zero
[D]
Less than zero
31
If a set of data has one mode and its value is less than mean, then the distribution is called:
[A]
Positively skewed
[B]
Negatively skewed
[C]
Symmetrical
[D]
Normal
Answer: Positively skewed
32
Taking the relevant root of the product of all non-zero and positive values are called:
[A]
Arithmetic mean
[B]
Geometric mean
[C]
Harmonic mean
[D]
Combined mean
33
Geometric mean is suitable when the values are given as:
[A]
Proportions
[B]
Ratios
[C]
Percentage rates
[D]
All of the above
34
If the two observations are a = 2 and b = -2, then their geometric mean will be:
[A]
Zero
[B]
Infinity
[C]
Impossible
[D]
Negative
35
The ratio among the number of items and the sum of reciprocals of items is called:
[A]
Arithmetic mean
[B]
Geometric mean
[C]
Harmonic mean
[D]
Mode
36
Harmonic mean gives less weightage to:
[A]
Small values
[B]
Large values
[C]
Positive values
[D]
Negative values
37
For an open-end frequency distribution, it is not possible to find:
[A]
Arithmetic mean
[B]
Geometric mean
[C]
Harmonic mean
[D]
All of the above
38
Which pair of averages cannot be calculated when one of numbers in the series is zero?
[A]
Geometric mean and Median
[B]
Harmonic mean and Mode
[C]
Simple mean and Weighted mean
[D]
Geometric mean and Harmonic mean
Answer: Geometric mean and Harmonic mean
39
The averages are affected by change of:
[A]
Origin
[B]
Scale
[C]
Both (a) and (b)
[D]
None of the above
40
The geometric mean and harmonic mean of two values are. 8 and 16 respectively, then arithmetic mean of values is:
[A]
4
[B]
16
[C]
24
[D]
128
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