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    discrete probability function P(X=i) =(1/2)^i for i = 1,2,3 X³ e [-9,9]

    Hello there, perhaps you can help me. The first task is, to calculate the probability in Range of My gues is that only for i=1 and i=2 is X in Range, cause of 1² < 9 and 2² < 9. The probabilty is (1/2)^1 + (1/2)^2 = 0.75 then. In the second task you should find a 0,2-quantile of...