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Required information An article, treating the value (in millions of dollars) of a mineral deposit yet to be mined as a random variable Xwith probability mass function p(x) given by p(10) = 0.40, p(60) = 0.45, p(80) = 0.15, and p(x) = 0 for values of x other than 10, 60, or 80. Compute ax