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The probability distribution of a random variable \( X \) is given by the following: rind, (a) The value of the constant \( c \) (b) \( E(X) \) and \( \operatorname{Var}(X) \) (c) The cumulative distribution function (cdi) and give its sketch. (d) \( P(X \geq 2) \) (e) \( P(0c)=0.85 \)