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