A professional proofreader has a 98 % chance of detecting an error in a piece of written work (other than misspellings, double words, and similar errors that are machine detected). A work contains four errors. a. Find the probability that the proofreader will miss at least one of them. b. Show that two such proofreaders working independently have a 99.96 % chance of detecting an error in a piece of written work. c. Find the probability that two such proofreaders working independently will miss a

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