4. Suppose X is a discrete random variable with probability mass function (pmf) given by 0.2 for x = -2 P(X = x) = 0.4 for x = 0 0.1 for * = 1 0.3 for x = 8 What is 1 - F(0.5), where F is the cumulative distribution function (cdf) of X? a) 0.4 b) 0.6 c) 0.5 d) You cannot compute F(0.5) because 0.5 is not part of the sample space of X