{"blocks": [{"key": "1094765f", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "9170c306", "text": "You are tasked with building a model that predicts user churn for a subscription app.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "9d9f6928", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "c58ce61f", "text": "Which modeling techniques would you consider and why? How would you address class imbalance and choose appropriate evaluation metrics?", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "4dd6dc10", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "ee571fa4", "text": "Talk about logistic regression, tree models, resampling, ROC-AUC, precision-recall.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}