Find the probability of John failed in all the tests

John registered for three subjects in this trimester, including Mathematics, History and Economics. He personally feels that the probability for him to pass the Mathematics test (M) is 0.9, the History test (H) is 0.6, and Economics (E) test is 0.8 respectively. Assume that the probability he would pass in his test is independent to each other. (i) Find the probability of John failed in all the tests. (3 marks) (ii) What is the probability that John passed in Mathematics or History test? (3 marks)