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Class 11 Economics (Statistics For Economics) Chapter 6 Measures Of Dispersion Quiz 2 (60 MCQs)

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1. Find the lower quartile of the following set of scores. 12, 9, 4, 6, 5, 8, 9, 4, 10, 2
2. If each item is reduced by 10, Range is
3. If the data is skewed to the right, which measure of central tendency would best to describe the data?
4. What is the sample median and IQR for the following data:15, 21, 24, 16, 71, 18
5. A(n) ..... of a data set is much greater or much less than the other data values.
6. What is the most simple measure of variability?
7. The relative measure of dispersion is .....
8. Which set of data has the largest range?
9. The median and the Mean deviation about the median for following valuesi 3ii 11iii 4iv 7v 5is .....
10. As x increases, y decreases.
11. Which of the following is least affected by the extreme values of the observation in the data set
12. Which of the following is a characteristic of the mean deviation?
13. Study of scatteredness of observations is known as .....
14. If the standard deviation of a data set is 17, then what is the standard deviation of the same data set?
15. Which of the measures of location is used in computing for the variance of a distribution?
16. Which of the following is true about the mean deviation?
17. Standard deviation of first 50 natural number is .....
18. Given the data:136, 150, 119, 150, 125, 140.Find the upper quartile (Q3). (Hint ..... put the numbers in order and find the median to help you find Q3)
19. What percent of the data values fall within one standard deviation of the mean?16, 28, 6, 19, 21, 15, 22, 33, 17, 12
20. When labeling the axis for a normal distribution curve, the notation $\sigma$ $\sigma$
21. Find the standard deviation for the following data; 86, 95, 78, 67, and 85.
22. How does standard deviation help in understanding the spread of data?
23. What does the interquartile range (IQR) represent? The spread of the entire dataset. The spread of the middle 50% of the data. The difference between the highest and lowest values. The average deviation of data points from the mean.
24. Given the range is 5, if each data is multiplied with 3, what is the value of new range?
25. In Calculating Standard Deviation, which of the Measure of central tendency is used
26. What does the standard deviation indicate?
27. Explain the concept of quartile deviation and its calculation.
28. Min bagi suatu set nombor (p-4), p, (p + 2), 2p, (2p + 3) ialah 10. Hitung nilai p.Mean of a set number (p-4), p, (p + 2), 2p, (2p + 3) is 10. Find the value of p.
29. To find the interquartile range (IQR) .....
30. The mean and the Mean deviation about the mean for following valuesi 3ii 11iii 4iv 7v 5is .....
31. What does Hakuna Matata mean?
32. The positive square root is taken of the population variance then collected measure is transformed into .....
33. Find the mean of the following data.13, 35, 33, 47, 38, 37, 42, 16, 14
34. Given a variance of 64, what is the standard deviation?
35. The average scores in the test of section A is 36. Section B also gained the same average scores in the same test. However, section A has a standard deviation of 4 while section B has a standard deviation of 1.8. In which section are the scores less dispersed?
36. Sum of 15 numbers is 1200 while sum of square of the numbers is 381000.Calculate the mean of the numbers.
37. The definition of Skewness is
38. Range can be calculated for Open-ended class intervals
39. Which measure of variation is calculated using measures of position values?
40. Which of the following sets of data has the smallest standard deviation?
41. The Coefficient of Range, for a data where Max value is 80kg and Minimum value is 20kg is
42. ..... expresses the variability of the data in terms of some other value/percentages.
43. ..... is the tool of measure of the variation of the items.
44. What does the term 'merits and demerits' refer to in statistics?
45. Given a standard deviation of 9, what is the variance?
46. 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.
47. What is the main advantage of using the range?
48. When 1st quartile=20, 3rd quartile=30:the value of Quartile Deviation is
49. Which measure is based on all observation?
50. If two data sets have the same mean, then these sets also have the same standard deviations.
51. What measure of variation is the square root of the variance?
52. Quartile Deviation is called
53. What is the 50th percentile of the following student heights:60 in, 75 in, 70 in, 58 in, 62 in
54. 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 .....
55. If mean=5, SD=2.6, coefficient of variation is
56. What measures of position divides the distribution into 4 equal parts?
57. As x increases, y increases
58. The distribution with zero excess Kurtosis is called
59. 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.
60. Which of the following is a merit of using the coefficient of variation?
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