Verify that the following function is a probability mass function, and determine the requested probabilities. f(x)=2x+5/45 x=0,1, 2, 3, 4 Is the function a probability mass function? Yes. Give exact answers in form of fraction (a) P(X = 4) = 0.3 (b) p(x<1)=0.25 (c) P(2 X < 4)=0.45 (d) P(X> -10)=1
