{"blocks": [{"key": "171e8874", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "6364a0e2", "text": "A company sells a product through three channels – online, phone and email – and supplies click-through and conversion rates for each.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "3808b665", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "888c2986", "text": "Given impressions, click-through rate and conversion rate for each channel, compute the expected number of purchases per channel. Rank channels by conversion efficiency and overall expected revenue if an average order value is supplied. Which additional metric(s) would you request to judge channel performance more holistically?", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "7e5234a1", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "32b02182", "text": "Conversions = impressions × click rate × conversion rate; compare per-impression or per-click ROI.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}