Math Problem Statement
Resuelve este ejercicio de la manera más resumida posible
Solution
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Math Problem Analysis
Mathematical Concepts
Probability Theory
Martingales
Random Walk
Formulas
S_t = e^{σM_t} (\frac{2}{e^σ + e^{-σ}})^t
Conditional Expectation E[S_{t+1} | F_t] = S_t
Theorems
Martingale Property
Suitable Grade Level
Undergraduate (Advanced Probability)
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