Please solve all the questions

Task 5: 5 Marks] Find the mean, median and the mode for the following data set: 17, 3, 5,7, 5,9,1,5,9, 13 Task 6: Verify whether the following is a Tautology /Contradiction or neither [10 Marks] CA-B) A (BC)]- (AC) Task 7: [18 Marks] A box contains 8 red balls, 10 green balls, and 12 blue balls. Two balls are selected separately and the second ba is selected while the first ball is kept outside. Calculate the probability that 1) At least one ball is red. 2) The two balls are of the same color 3) The first ball is red and the second ball is blue Task 8: 8 Marks] Suppose that a teacher is selected at random from 50 teachers of whom 20 are teaching Biology, 15 are teaching English, and 10 are teaching Biology or English. Calculate the probability that the teacher is teaching Biology and English Task 9: 6 Marks] Given the function fx)-xx, Calculate each of the following values: 2) f(2)