A company uses two proofreaders X and Y to check a certain
Chapter 9, Problem 24E(choose chapter or problem)
A company uses two proofreaders X and Y to check a certain manuscript. X misses 12% of typographical errors and Y misses 15%. Assume that the proofreaders work independently.a. What is the probability that a randomly chosen typographical error will be missed by both proofreaders?b. If the manuscript contains 1,000 typographical errors, what number can be expected to be missed?
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