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Which of the following would be the most useful for analyzing bias in Twitter's algorithm? System flowchart Data flow diagram Program flowchart Business process diagram A conceptual tool that helps illustrate the conditions present when fraud occurs: Fraud triangle Context diagram Justifiable reliance model Audit trail Bobby has permission to sign checks. Which of the following should Bobby not have: Approval of purchase orders Custody of checks Input on vendor selection Access to bank statements One way to reduce the likelihood of inaccurate system input would be: review system reports for accuracy make machine-readable source documents design reports to automatically calculate a checksum separation of duties