Math Problem Statement
20ポイントをかけて予想が当たったら100ポイント獲得、予想が外れたら100ポイント損失。では損益分岐は?
Solution
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Math Problem Analysis
Mathematical Concepts
Probability
Expected Value
Decision Theory
Formulas
Expected Value formula: E(X) = p * gain - (1 - p) * loss
Theorems
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Suitable Grade Level
Advanced Mathematics