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measures of dispersion MCQs

Practise focused measures of dispersion questions with marked answers for exam preparation and subject revision.

measures of dispersion Mcqs

1. If Skewed distribution the three averages mean, median and mode are ________?
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A. Identical

B. None of these

C. Different

D. Zero

2. The ________ in the distribution around which the observation to lie?
0

A. Central value

B. Manner

C. Mean

D. Dispersion

3. Relative measure of skewness was introduced by _____________?
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A. Mode

B. Lack

C. Karl Person

D. Rowely

4. If the standard deviation of the values 2,4,6,8 is 2.33, then the standard deviation of the values 4,6,8,10 is_____________?
0

A. 4.66

B. 2.58

C. 2.33

D. 0

5. Mean deviation is equal to 4/5 of the _________ manipulation?
0

A. Variance

B. Quartile deviation

C. Standard deviation

D. Range

6. The mean deviation of the values, 18, 12, 15, is_______________?
0

A. 6

B. 3

C. 2

D. Zero

7. Lowest value of variance can be____________?
0

A. 0

B. 3

C. -1

D. 1

8. In symmetrical distribution, the co-efficient of skewness is equal to ______________?
0

A. None of these

B. 0

C. 1

D. -1

9. The second moment about mean is _____?
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A. S.D.

B. Mode

C. Mean

D. Variance

10. The lack of uniformity is called ______________?
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A. variation

B. Lack

C. Skewness

D. X= 5

11. If y= ax + b the S.D. of y is _______________?
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A. Minimum

B. S.D. of x

C. Mean Deviation of x

D. Maximum

12. Range of 5,5,5,5, is ________________?
0

A. None of these

B. 5

C. 0

D. 25

13. The standard deviation is affected by the value of every____________?
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A. Observation

B. Relative Dispersion

C. Items

D. Absolute

14. The frequency distribution mean > Median > Mode is called __________?
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A. +vely

B. Symmetrical

C. One

D. Negatively

15. First moment about origin is always equal to _______________?
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A. variance

B. None of these

C. A.M.

D. Zero

16. If third moment about mean is equal to zero, then distribution is ______________?
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A. positively skewed

B. None of these

C. Negatively skewed

D. Symmetrical

17. The S.D. and variance are ____ of origine?
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A. Multiplied

B. Independent

C. Variance

D. Change

18. Mean deviation =______ S.D?
0

A. 5-Jun

B. 3-Feb

C. 4/5

D. 6-May

19. suppose for 40 observation, the variance is 50. If all the observation are increased by 20, the variance of these increased observation will be_________?
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A. 50

B. 70

C. 50-20=30

D. 50/20

20. The shape of the symmetrical distribution is _______?
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A. None of these

B. U- Shaped

C. Bell- Shaped

D. J- Shaped

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