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Class 11 Economics (Statistics For Economics) Chapter 6 Measures Of Dispersion Quiz 5 (25 MCQs)

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1. Which of the following sets of data has the smallest standard deviation?
2. The Coefficient of Range, for a data where Max value is 80kg and Minimum value is 20kg is
3. ..... expresses the variability of the data in terms of some other value/percentages.
4. ..... is the tool of measure of the variation of the items.
5. What does the term 'merits and demerits' refer to in statistics?
6. Given a standard deviation of 9, what is the variance?
7. The variance of a set of the data is 35. If each value in the set of the data is multiplied by 2, find the new variance.
8. Four data sets are shown below.Set 1:\{10, 19, 38, 50, 51\}Set 2:\{5, 21, 26, 39, 51\}Set 3:\{9, 38, 50, 50, 51\}Set 4:\{5, 28, 28, 28, 51\}Which data set has the largest standard deviation?
9. What is the main advantage of using the range?
10. When 1st quartile=20, 3rd quartile=30:the value of Quartile Deviation is
11. Which measure is based on all observation?
12. If two data sets have the same mean, then these sets also have the same standard deviations.
13. What measure of variation is the square root of the variance?
14. Quartile Deviation is called
15. What is the 50th percentile of the following student heights:60 in, 75 in, 70 in, 58 in, 62 in
16. The following are Gold prices for 5 consequtive days, Rs.4392, Rs.4381, Rs.4349, Rs.4395, Rs.4380 then the Range and Coefficient of Range in Gold prices is .....
17. If mean=5, SD=2.6, coefficient of variation is
18. What measures of position divides the distribution into 4 equal parts?
19. As x increases, y increases
20. The distribution with zero excess Kurtosis is called
21. The variance of a set of positive numbers p, (p-5), (p-2), (p-3) and (2p-5) is 5.84. Calculate the value of p.
22. Which of the following is a merit of using the coefficient of variation?
23. Which measure of dispersion is most affected by outliers?
24. The mean and the Standard deviation for following valuesi 3ii 11iii 4iv 7v 5is .....
25. Suppose you have 3 data values of 12, 14, and 16. If a value of 30 is added to the data set, what effect does this have on the mean and standard deviation?
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