MCQ Measures of Dispersion Chapter 6 Class 11 Economics

1. Semi-interquartile range is also known as

(a) Mean deviation

(b) Standard deviation

(d) Quartile range.

Question 1 of 20

2. If mean and coefficient of variation of a set of data is 10 and 5, respectively, then the standard deviation is:

(a) 10

(b) 0.5

(d) none of the above

Question 2 of 20

3. A set of values is said to be relatively uniform if it has:

(a) High dispersion

(b) Zero dispersion

(d) Negative dispersion

Question 3 of 20

4. Which measure of dispersion has a different unit other than the unit of measurement of values?

(a) Mean deviation

(b) Range

(d) Variance

Question 4 of 20

5. Which measure is based on only the central fifty per cent of the observations?

(a) Mean deviation

(b) Quartile deviation

(d) All these measures

Question 5 of 20

6. Which measure of dispersion is based on the absolute deviations only?

(a) Quartile deviation

(b) Mean Variation

(d) Range

Question 6 of 20

7. Quartile deviation is called

(a) Inter quartile range

(b) Quartile range

(d) None of these

Question 7 of 20

8. Which measure of dispersion is not affected by the presence of extreme observations?

(a) Standard deviation

(b) Mean deviation

(d) Quartile deviation

Question 8 of 20

9. The range of the following set of observations 2, 3, 5, 9, 8, 7, 6, 5, 7, 4, 3 is:

(a) 6

(b) 7

(d) 11

Question 9 of 20

10. Which one is an absolute measure of dispersion?

(al Standard Deviation

(b) Mean Deviation

(d) All these measures

Question 10 of 20

11. If the minimum value in a set is 9 and its range is 57, the maximum value of the set is:

(a) 33

(b) 66

(d) None of these

Question 11 of 20

12. Which of the following measures of dispersion can attain a negative value?

(a) Range

(b) Mean deviation

(d) Variance

Question 12 of 20

13. The measure of variation which is mostly affected by extreme items is:

(a) Range

(b) Quartile deviation

(d) Mean deviations

Question 13 of 20

14. Coefficient of variation is

(a) Absolute measure

(b) Relative measure

(d) None of these

Question 14 of 20

15. The range represents the

(a) Difference between highest and lowest value

(b) Middle number

(d) Lowest number

Question 15 of 20

16. For comparison of two different series, the best measure of dispersion is:

(a) Mean deviation

(b) Range

(d) Coefficient of variation

Question 16 of 20

17. The appropriate measure of dispersions for open - end classification is:

(a) Mean deviation

(b) Standard deviation

(d) All these measures

Question 17 of 20

18. The inter quartile range

A) Is normally used when the measure of central tendency is the mode

B) Relies on four values and therefore does not provide a measure of dispersion

C) Is representative of the middle 50% of values in the data set

D) Can be calculated by subtracting the median from the fourth quartile

Question 18 of 20

19. The variance

A) Should be adjusted when we want to generalize from a sample to a population

B) Produces small values in square units due to taking the square root of deviations

C) Cannot be calculated on continuous data

D) Involves squaring deviation scores and then dividing them together

Question 19 of 20

20. The main disadvantage of the standard deviation is

A) It takes into account all the values in the data set

B) It is difficult to calculate by hand

C) It is a sensitive measure of dispersion

D) It is used in many other statistical techniques

Question 20 of 20

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