{"blocks": [{"key": "28806cef", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "c36789db", "text": "Statistics quick check during experimentation round", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "572bf5e7", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "6e848da6", "text": "A fair coin is flipped 10 times. Calculate (a) the total number of possible outcome sequences, (b) the probability of exactly 3 heads, and (c) the probability of at most 3 heads.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "7f79a2b3", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "901f3de5", "text": "Use binomial coefficients C(10,k) and probability (0.5)^10.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}