Question: Suppose that 100 errors were intentionally placed in a large software system before the system was subjected to final testing. Moreover, suppose that 200 errors

Suppose that 100 errors were intentionally placed in a large software system before the system was subjected to final testing. Moreover, suppose that 200 errors were discovered and corrected during this final testing, of which 50 errors were from the group intentionally placed in the system. If the remaining 50 known errors are then corrected, how many unknown errors would you estimate are still in the system? Explain why.

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