{"blocks": [{"key": "ddbd573c", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "2c83739a", "text": "A cryptocurrency company airs a Super Bowl commercial featuring a QR code; viewers who scan and complete sign-up receive a $15 coupon.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "e8ec950f", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "f8860a47", "text": "How would you estimate the total number of successful sign-ups generated by this Super Bowl advertisement?", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "880744bb", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "d8283d81", "text": "Consider audience size, scan rate, funnel conversion, historical comps, coupon redemption, and ways to validate assumptions with sampling or controlled experiments.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}