7. Suppose that $X_1, X_2, \dots$ are i.i.d. random variables with Poisson distribution with the parameter $\lambda = 1$. Let $S_n = X_1 + \dots + X_n$, $n = 1, 2, \dots$. \newline Find the probability $Pr(2S_{300} > S_{600} - 30)$.
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..$ are i.i.d. random variables with Poisson distribution with parameter $\lambda = 1$, we have $E(X_i) = Var(X_i) = 1$. Show more…
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