A software company uses two quality assurance (QA) checkers X and Y to check an application for bugs. X misses 12% of the bugs and Y misses 15%. Assume that the QA checkers work independently.
To find out the probability that typographical error will be missed by both proof readers.
Proofreader misses of the typographical errors and proofreader misses of the typographical errors.
According to the given information the following things can be written
To find out what number can be expected to be missed if there are typographical errors.
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