{"blocks": [{"key": "d4dc4ded", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "1ff6ff4c", "text": "Social media company wants to estimate the number of fake accounts on the platform.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "7f4a31c8", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "db19ef08", "text": "How would you design an analytics approach to estimate the proportion or absolute count of fake accounts on Facebook? What data signals, sampling strategy, and validation method would you use?", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "35d6817b", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "f65a522b", "text": "Consider random sampling, supervised classification, manual labeling, capture-recapture, and confidence intervals.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}