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Class 11 Economics (Statistics For Economics) Chapter 5 Measures Of Central Tendency Quiz 1 (60 MCQs)

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1. Find the mode of:12, 26, 4, 30, 2, 37, 26, 38
2. The scores in a basketball match are as follows:7, 13, 18, 24, 9, 3, 18If the team scored 18 points on their next game, how will this effect the mode of the scores?
3. What does the mode represent?
4. The median age of cars on a used car lot is 4 years. The interquartile range of the cars' ages is 5 years. Which statement is most likely true?
5. Which measure of central tendency is greatly affected by extreme scores?
6. The price of a cheese pizza in five different pizza delivery shops are 5, 5, 4, 6, 6, 8, and $ 7. Find the mean price of a cheese pizza.
7. What is the Q1 of this data set?6, 7, 2, 1, 5, 2, 1, 6
8. Find the median.5, 15, 10, 20, 15, 10, 15
9. The following are scores made on a math test:80, 90, 90, 85, 60, 70, 75, 85, 90, 60, 80 What is the mode of these scores?
10. Find the mean.18, 2, 0, 0, 0
11. The mean of 40 observations is 50. If two observations 45 and 55 are removed, the new mean is:
12. The most frequent value is called
13. Which is the number that appears the most often?
14. Which one would be the best to use:0, 0, 1, 1, 2, 3, 4, 5, 6, 8
15. The temperature received till Friday was 34, 38, 36, 30 and 31. If the temperature on Saturday drops to 11$^{o}$C, how does the inclusion of Saturday's temperature affect the weekly mean temperature?
16. Find the range of:23, 3, 14, 9, 30
17. The heights of six students in a class are given below:158cm 172cm 164cm164cm 167cm 159cm However, there were actually seven students in the class, and the mean height in the class was 165 cm. What was the height of the unknown student?
18. Look at these numbers-11, 11, 7, 18, 8. What is the correct way to put them in order so you can find the median?
19. What is the Mode? 22, 7, 22, 1, 7, 18, 18, 16, 6, 6, 7
20. The variance of a dataset is 16. If each observation of the dataset is doubled, what will be the new variance?
21. Calculate the mean of the following numbers:10, 15, 20, 25, 30
22. Mrs. Jones surveyed the class for the number of letters in their given first name. The data is recorded below.{5, 8, 6, 5, 4, 9, 8, 7, 6, 3, 8, 7, 5, 6, 7, 8}What is the interquartile range of the data?
23. What is the mode for the numbers 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 6, 7, 8, 8, 8, and 8?
24. What is the definition of the mean?
25. The range of the numbers 34, 32, 12, 65, and 45 is .....
26. A data set can have more than one .....
27. The upper (higher) whisker of the box plot is drawn from
28. Given the set of scores:43, 38, 43, 38, 38, 45, 36, 38, 43, 40, 35, 40WHAT IS THE VALUE OF THE MODE?
29. Find the median.2, 9, 7, 4, 6, 1
30. The mean of a dataset is 40 and the mode is 35. If the median is 38, what can be inferred about the shape of the dataset?
31. The measures of central tendency for the data set 1, 3, 9, 11, 2 are:
32. The heights of the starting 5 players on a basketball team are $60$ $68$ $64$ $65$ $65$
33. The mode of 3, 5, 5, 7, 8, 8, 8, 9 is:
34. Your math grades are 90, 85, 58, 90, 80, 100, and 90. Which grade is the outlier?
35. There can be more than one mode
36. Average salary of 50 men was ₹ 80 but it was foundthat salary of 2 of them were ₹ 46 & ₹ 28 which was wronglytaken as ₹ 64 & ₹ 82. Revised average salary is:
37. Descriptive statistics that offer information about where the scores in a particular data set tend to cluster are referred to in scientific jargon as what?
38. Find the mode in the following data 6, 7, 6, 7, 8, 7, 6, 6 9, 10, 10, 7, 7
39. Find the mode of the data set, Identify the outlier, and find the mode excluding outliers:100, 100, 100, 20, 120, 90.
40. A basketball team scored43, 55, 41 and 37 points in their first four matches.Determine the mean number of points scored for the first four matches and hence calculate What score will the team need to shoot in the next match so that they maintain the same mean score?
41. A data set can contain more than one median, or no median at all.
42. ..... is the a measure of central tendency that is affected by extremely large or small values called the outliers.
43. The median of the top 50% of the number values in the data set is known as the .....
44. TRUE OR FALSE?The MEAN is the sum of the data divided by the number of items in the set.
45. If you have two numbers in the middle, you should
46. Given the set of scores:43, 38, 43, 38, 38, 45, 36, 38, 43, 40, 35, 40WHAT IS THE MEDIAN VALUE?
47. The average temperatures across Washington, Texas, Oklahoma, New York, Missouri, Georgia, Hawaii and Michigan are 48$^\circ$F, 65$^\circ$F, 60$^\circ$F, 45$^\circ$F, 54$^\circ$F, 64$^\circ$F, 70$^\circ$F and 45$^\circ$F respectively. Find the median.
48. In 2019 the following number of babies were born in the Emerald City each month:12, 35, 18, 17, 13, 27, 12, 18, 27, 33, 15What is the range?
49. What does the mean represent in a set of numbers?
50. Sam works as an apprentice at the butcher. He is 5'9" and has a medium build. He is 19 years old. What does Sam weigh?
51. Determine the mean of the following set of numbers:40, 61, 95, 79, 9, 50, 80, 63, 109, 42
52. If 20 is added to the data set below, which statement will be true?50, 55, 55, 60, 62
53. The mode score on the Unit 1 Test was 94% Which of these interpretations must be correct?
54. What is the mean of the data set:10, 15, 20, 25, 30?
55. If a number is added to a set that is the same as the mean, how does this affect the mean?
56. The salary of the employees in the office were $ 15, 000; $ 18, 000; $ 16, 000; $ 14, 000; $ 90, 000; and $ 17, 000. What is the best measure of the central tendency of the salaries?
57. Lizzy had test scores of:72, 94, 108, 60What is the RANGE of her test scores?
58. Jasmine has spent $ 50, $ 72, $ 22 and $ 15 each of the last 4 weeks. If she wants to make sure she spends an average of $ 40 a week or less, what is the most Jasmine can spend next week?
59. TRUE OR FALSE?The middle number of the data after ordering from least to greatest is called the mean.
60. Grouped Data-A set or array of things or observation that has not undergone any classification.
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