What is the probability it goes undetected

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A and B are summer interns working as proofreaders for a local newspaper. Based on aptitude tests, A has a 50% chance of spotting a hyphenation error, while B picks up on that same kind of mistake 80% of the time. Suppose the copy they are proofing contains a hyphenation error. What is the probability it goes undetected.

Reference no: EM132361820

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