Q4 For each of the following say (yes or no) whether it can be the graph of a cumulative distribution function (CDF). If it can be, say whether the random variable is discrete or continuous and justify your answers. (i) F(x) (ii) F(x) (iii) F(I) 1 1 1 0.5 0.5 0.5 (iv) F() (v) F(x) (vi) F(x) 1+ 0.5 0.5 0.5 x (vii) F(x) (viii) F(x) 1 1 0.5 0.5