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d) A professor uses two proofreaders Ali and Hana to check a certain manuscript. Ali misses 13% of typographical crrors and Hana misses 9%. Assume that the proofreaders work independently i. What is the probability that a randomly chosen typographical error will be missed by both proofreaders? (2 marks) If the manuscript contains 2000 typographical errors, what number can be expected to be missed? (2 marks)