Stats 1 Qualifier important questions

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1. Q4Katheryn rates a book on Goodreads on a scale of 1 to 5. What kind of scale of measurement
2. Q5Which of the following is/are numerical variables?
3. Q6Choose the correct statement(s).
4. Q7Users rate apps on the Play Store. The table shows the individual ratings. The overall rat
5. Q8Users rate apps on the Play Store. The table shows the individual ratings. The overall rat
6. Q9Users rate apps on the Play Store on a scale of 1 to 5. The overall rating of an app is th
7. Q10A bike dataset has the variables Brand, Bike_name, Mileage, Displacement, No. of Cylinders
8. Q11A bike dataset has the variables Brand, Bike_name, Mileage, Displacement, No. of Cylinders
9. Q12Choose the incorrect statement(s).
10. Q13A total of 2000 cases of Covid-19 were registered on 5th May 2020 in 5 key districts of Ma
11. Q14A seller wants to analyze the sale numbers of all known brands to decide which brands are
12. Q15Which of the following can be defined for both nominal and ordinal data?
13. Q16An analyst wants to represent the revenues of various companies using a graph. Which of th
14. Q17Rajdhani Express (12437) has the following berths. What is the percentage of berths filled
15. Q18Rajdhani Express (12437) has the following berths. What is the relative frequency of 3A be
16. Q19Rajdhani Express (12437) has the following berths. Which pie chart correctly represents th
17. Q20The table shows the number of Man of the Match (MoM) awards won by 11 players. Some entrie
18. Q21The table shows the number of Man of the Match (MoM) awards won by 11 players. Some entrie
19. Q22A factory produces 100 objects of Type A and 200 objects of Type B. The table gives the pr
20. Q23A factory produces 100 objects of Type A and 200 objects of Type B. The table gives the pr
21. Q24A factory produces 100 objects of Type A and 200 objects of Type B. The table gives the pr
22. Q25The pie chart shows how the 500 marks of an exam are distributed among five subjects. The
23. Q26The pie chart shows how the 500 marks of an exam are distributed among five subjects. Choo
24. Q27The table shows the number of players in five cricket academies. Each academy has at least
25. Q28The table shows the number of players in five cricket academies. Each academy has at least
26. Q29The table shows the number of players in five cricket academies. Each academy has at least
27. Q30The table shows the number of players in five cricket academies. Each academy has at least
28. Q31The number of students sharing each rank (1st, 2nd, 3rd, 4th) is drawn as three bar charts
29. Q32The mean of x_1,,x_n is 15, the mean of x_1,,x_2n is 45 and the mean of x_1,,x_3n is 34. F
30. Q33The five-number summary of a data set of 99 observations is 25, 35, 47, 56, 78. Which stat
31. Q34The data set is 4, 5, x, 12, 14, 4, 5, x, 12, 14 and its mean is 9. What is the approximat
32. Q35The histogram shows the distribution of marks of a class. Each class interval includes its
33. Q36The histogram shows the distribution of marks of a class. Each class interval includes its
34. Q37The histogram shows the distribution of marks of a class. Each class interval includes its
35. Q38The mean of 9 observations is 14 and their sample standard deviation is 10. Later it was f
36. Q39The mean of 9 observations is 14 and their sample standard deviation is 10. Later it was f
37. Q40The 10 observations are 37, 26, 30, 29, 90, 71, 73, 88, 97, 75. Calculate the 10th, 50th a
38. Q41The 6 observations are 45, 42, 28, 23, 95, 119. Calculate the IQR.
39. Q42The 6 observations are 45, 42, 28, 23, 95, 119. How many outliers are there?
40. Q43A box has cards numbered 1 to 29. The number of cards with a given number equals that numb
41. Q44The stem-and-leaf plot shows 13 ratings (key: 4 | 6 = 46). Find the quartiles with this ru
42. Q45The stem-and-leaf plot shows 13 ratings out of 100 (key: 4 | 6 = 46). 2 points are added t
43. Q46The table gives the calories and fat content of seven products. What is the correlation co
44. Q47The table shows the ODI records of two captains, at home and away. Which captain has the b
45. Q48The table shows the ODI records of two captains, at home and away. Which captain has the h
46. Q49The table shows the ODI records of two captains, at home and away. Which captain has the b
47. Q50The table shows the ODI records of two captains, at home and away. Which captain has the b
48. Q51The table shows the ODI records of two captains, at home and away. Does this data illustra
49. Q52The table gives four pairs of values of X and Y. What is the sample standard deviation of
50. Q53The table gives four pairs of values of X and Y. What is the population covariance between
51. Q54The table shows the sales of OnePlus and BBK Electronics at seven dealers in two locations
52. Q55The table shows the sales of OnePlus and BBK Electronics at seven dealers in two locations
53. Q56The table shows the sales of OnePlus and BBK Electronics at seven dealers in two locations
54. Q57The table shows the sales of OnePlus and BBK Electronics at seven dealers in two locations
55. Q58The table shows the sales of OnePlus and BBK Electronics at seven dealers in two locations
56. Q59The table shows the sales of OnePlus and BBK Electronics at seven dealers in two locations
57. Q60The table classifies 699 students by economic condition and intelligence level. What propo
58. Q61The table classifies 699 students by economic condition and intelligence level. What propo
59. Q62The table classifies 699 students by economic condition and intelligence level. What propo
60. Q63The table classifies 699 students by economic condition and intelligence level. What perce
61. Q64The table classifies 699 students by economic condition and intelligence level. What perce
62. Q65Each of the values 4, 5, 7, 11, 13 is multiplied by 4 and then 7 is added. What is the dif
63. Q66The first quartile of a data set is Q_1=80 and the third quartile is Q_3=100. Which of the
64. Q67The correlation coefficient between x and y is r=0.45. If 0.10 is added to all x values, a
65. Q68The stem-and-leaf plots show the marks of students in a CT paper (key: 3 | 0 = 30) and in
66. Q69The stem-and-leaf plots show the marks of students in a CT paper (key: 3 | 0 = 30) and in
67. Q70The stem-and-leaf plots show the marks of students in a CT paper (key: 3 | 0 = 30) and in
68. Q71The table shows placement data of 10 students. Which of the following are cases?
69. Q72The table shows placement data of 10 students. Which of the following are numerical variab
70. Q73The table shows placement data of 10 students. What is the population standard deviation o
71. Q74The table shows placement data of 10 students. Consider only the placed students. Code gen
72. Q75The histogram shows the distribution of runs scored (class intervals of width 10). What is
73. Q76The histogram shows the distribution of runs scored (class intervals of width 10). What is
74. Q77A call center has 75 employees who work from 9 AM to 6 PM, with a lunch break from 1 PM to
75. Q78The bar chart shows the grade points of students in a Statistics exam, followed by four bo
76. Q79The pie chart shows the distribution of a household's expenditure on different items. Base
77. Q80Five non-zero natural numbers have mean 8, median 6 and mode 15. What are their range and
78. Q81Rainfall data (mm): 1034.6, 1078.9, 1304.1, 859.7, 1164.8, 1023.1, 937.8, 1165.1, 937.1, 7
79. Q82A gym chain owner wants to know about the %fat in the body of people who have been members
80. Q83Consider the box plot below. Choose the correct options.
81. Q84An exam has 5 multiple-select questions. Each correct answer earns +0.3 marks and each wro
82. Q85Students were asked how they travel to school. 25 students walk, and the relative frequenc
83. Q86125 students were asked how they travel to school: walk, public transport, car, cycle or b
84. Q87The number of test matches a captain played against different countries is: Australia 20,
85. Q88Which statements about bar charts are true?
86. Q89Which of the following represent(s) cross-sectional data?
87. Q90The sum of 12 observations is 60, and the sum of their squares is 360. Find the population
88. Q91The marks obtained by Meera in six tests are 55, 60, 60, 62, 65, 68. If she scores 70 mark
89. Q92If the 70th percentile of the data set 78, 60, x, 65, 66 is x, then what can be the possib
90. Q93The scatter plot shows the calorie intake (x) and the weight gain in a week (y) of a perso
91. Q94The table shows the ticket sales recorded by a multiplex for four categories of movies acr
92. Q95The mean of the 30 values in a given data set is 100. When these values are rearranged in
93. Q96There are 4 observations whose mean is 5 and population variance is 2.5. Two of the observ
94. Q97Which of the following statements is/are meaningful?
95. Q98A government agency aims to evaluate the cleanliness standards of hospitals in a specific
96. Q99The number of awards given to a university drama club each year for outstanding performanc
97. Q100A total of 600 students wrote a competitive exam. Rahul's score is denoted by x, which hap