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Question 3 [26 MARKS]
Mr ND Sewpersadh is a new educator at Wartburg Kirchdoff School. He teaches two (2) grade 12 classes. He wants to find out which of the classes performed better in the Trial Exams.
NB: The Trial Exam was out of 100
Grade 12A
57 60 85 20
15 35 46 60
48 60
68 70
70 75 33 48 78
60 45 90 85 50
Grade 128
20 29 33 35
56 56
60
35 40
60 60
3.1 Write down the minimum value for 12 B.
3.2 Calculate the median for 12A.
3.3 Calculate the mean for 12B
3.4 Calculate the probability of a learning getting above 80% in the B class, write your answer as a percentage.
3.5 Is the data of the test results discrete or continuous? Give a reason for your answer
3.6 Calculate the range of 12B.
3.7 Write down the mode for 12A.
3.8 Calculate the inter quartile range for 12B.
3.9 Mr ND Sewpersadh feels that 12A did better in the Trial exams.
Show with calculation if he is correct. Give a reason for your answer.
45 46
46 56
70 85 95
60
(2)
(3)
(3)
(3)
(3)
(2)
(2)
(3)
(5)
[26]
Sagot :
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