{"blocks": [{"key": "bc0d6a60", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "81c5980f", "text": "A casino analyst models dice rolls to understand outcome probabilities for marketing promotions.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "2532d1ae", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "4527c844", "text": "You roll a fair six-sided die 10 times. What is the probability of observing exactly 3 sixes? What is the expected number and standard deviation of sixes in those 10 rolls?", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "81ebe3e4", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "1137e7fe", "text": "Use the Binomial distribution: n = 10, p = 1/6.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}