statistics

11. In which one among the given years the production of Type-Q scooters is closest to the average production of scooters by the company ?

2015
2016
2017
2018

Detailed SolutionIn which one among the given years the production of Type-Q scooters is closest to the average production of scooters by the company ?

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12. The percentage of students obtaining more than 10 and less than or equai to 40 marks is

15
65
69
74

Detailed SolutionThe percentage of students obtaining more than 10 and less than or equai to 40 marks is

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13. Given the following data: Class Interval FrequencyIf the mean is 18, then the value of A is

8
7
11
10

Detailed SolutionGiven the following data: Class Interval FrequencyIf the mean is 18, then the value of A is

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14. In which one among the following given years, the total production of all types of scooters was minimum ?

2017
2018
2019
2020

Detailed SolutionIn which one among the following given years, the total production of all types of scooters was minimum ?

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15. The following table gives performance of 500 students in four tests: Age group (I) (II) (III) (IV) Average Marks65 65 60 82 Range of Marks 25-85 15-100 55-750-100A stutend scores 74 marks in each test, Comparatively in which test he perfomed best?

(I)
(II)
(III)
(IV)

Detailed SolutionThe following table gives performance of 500 students in four tests: Age group (I) (II) (III) (IV) Average Marks65 65 60 82 Range of Marks 25-85 15-100 55-750-100A stutend scores 74 marks in each test, Comparatively in which test he perfomed best?

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16. For a certain year, the percentage of the total population by age-group is as follows: Age-Group in years Percentage15 years or less 30 16-25 17.75 26-25 17.25 36-45 14.50 46-55 14.25 56-65 5.12 66 and above 1.13 If 200 million people were below 36 years in age, approximately how many million will be in the age group 56 – 65 ?

12.75
14.9
15.75
None of the above

Detailed SolutionFor a certain year, the percentage of the total population by age-group is as follows: Age-Group in years Percentage15 years or less 30 16-25 17.75 26-25 17.25 36-45 14.50 46-55 14.25 56-65 5.12 66 and above 1.13 If 200 million people were below 36 years in age, approximately how many million will be in the age group 56 – 65 ?

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17. In which pairs of years the total production of Type-T scooters was three lakhs ?

2016 and 2018
2018 and 2020
2017 and 2020
None of these

Detailed SolutionIn which pairs of years the total production of Type-T scooters was three lakhs ?

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18. The marks obtained by six students in a test are 12, 25, 18, 18, 20, The number of students whose marks are more than the average marks is

1
2
3
4

Detailed SolutionThe marks obtained by six students in a test are 12, 25, 18, 18, 20, The number of students whose marks are more than the average marks is

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19. The first quartile is also known as

Median
Lower quartile
Mode
Third decile

Detailed SolutionThe first quartile is also known as

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20. Which of the two series is more consistent?

Series A
Series B
Series A and B are equally consistent
None of the above

Detailed SolutionWhich of the two series is more consistent?

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Test 1