Let $X_1, X_2, \ldots, X_n$ be random variables. For every $i\ne j$, assume $corr(X_i,X_j)=\rho$, where $\rho$ is some constant.
What is the maximum possible value of $\rho$?
2026-04-02 10:04:18.1775124258
Maximum possible correlation for $N$ random variables sharing idential correlation coefficient
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