hard · GMAT Quant
A financial auditor reviews transactions from four departments: Sales, HR, IT, and Operations. These departments generate 45%, 10%, 15%, and 30% of all records. Errors are found in 2% of Sales records, 1% of HR, 10% of IT, and 5% of Operations. An erroneous record is pulled, and it is known the record was not from the Sales department.
What is the probability that the record was generated by the IT department?
- dfrac1531
- dfrac1540
- dfrac15100
- dfrac12
- dfrac311
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