Product of Numbers from a Log Normal Distribution
Four independent random variables $X_i$, $1 \leq i \leq 4$, are log-normally distributed such that $\ln(X_i)$ has mean $0.5$ and variance $1$. What is the probability that the product of the $X_i$ is at least $50$?
Lihong Wang
160
Answer
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Amas
171
The answer is accepted.
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