If \( X \) is a random variable such that \( P(X = -2) = P(X = -1) = P(X = 2) = P(X = 1) = \frac{1}{6} \), and \( P(X = 0) = \frac{1}{3} \), then the mean of \( X \) is
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To find the mean of a random variable, calculate the weighted sum of all its possible values, where the weights are the respective probabilities.