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Line 195: :<math>\text{Var}(x_n + y_n) = \text{Var}(x_n) +\text{Var}(y_n) + 2\text{Cov}(x_n,y_n)</math>. Solving for each part ~~indivdually~~individually, :<math>\text{Var}(x_n) = \text{Var}(y_n) = \sum_{i = 1}^2 p_i(x_i-\mathbb{E}[x_i])^2 </math> :<math>

Buffon's needle problem: Difference between revisions