{"blocks": [{"key": "5be8d9a6", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "c8b5b2bd", "text": "Phone screen with HR focusing on model-evaluation terminology", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "8f96b56a", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "4962f642", "text": "Define precision, recall, specificity, and F1-score. Explain what a p-value represents. In a fraud-detection scenario, argue whether false positive rate or false negative rate is more critical.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "7815f646", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "2ef94f7e", "text": "Tie each metric to business cost; show trade-offs clearly.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}