{"blocks": [{"key": "801e21ac", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "b67a8a2f", "text": "Experian DataLabs online assessment – probability section", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "5fcaff8b", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "bdb33496", "text": "You repeatedly flip a fair coin until you obtain two heads. What is the expected number of flips? Given P(A)=0.3, P(B)=0.5 and P(A∩B)=0.15, compute P(A|B).", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "7549128d", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "2ffc9e57", "text": "Use geometric distribution expectation; apply conditional-probability formula P(A|B)=P(A∩B)/P(B).", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}