handwritten pls and neat

Question Suppose that X has a discrete distribution with the following probability distribution function X 0 2 3 4 5 f (x ) 0.1 0. 1 a 0.1 b 0.1 Suppose that P(X > 3) = 0.3, then a=0.3, b = 0.2 a=0.4, b = 0.2 O a=0.2, b = 0.2 None of these