Let Z be a discrete random variable. The cumulative distribution function (cdf), F(z), must satisfy which of the following conditions (select all that apply): F (2) < 1 F (z) = 0 for any value of z smaller than the minimum value of z. F (z) is non-decreasing. In other words, F (21) < F (z2) for z1 < z2. F (2) > 0 F (z) : = 1 for any value of z larger than the maximum value of z. None of the above. O O

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