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 48 60 70 75 33 48 76 15 35 46 60 68 70 60 45 90 85 50 Grade 12B 20 29 33 35 35 40 45 46 46 56 56 56 60 60 60 60 70 85 95 3.1 Write down the minimum value for 12 B. (2) 3.2 Calculate the median for 12A. (3) 3.3 Calculate the mean for 12B (3) 3.4 Calculate the probability of a learning getting above 80% in the B class, write your answer as a percentage. (3) 3.5 Is the data of the test results discrete or continuous? Give a reason for your answer (3) calculate the range of 12B​