Question 10 of 16 - / 6.3 View Policies Current Attempt in Progress Verify that the following function is a probability mass function, and determine the requested probabilities. f(x) = 4x x = 0, 1, 2, 3,4 Is the function a probability mass function? Give exact answers in form of fraction. (a) P(X - 4) - (b) P(X = 1) = (c) P(2 sX -10)- Statistical Tables and Charts Save for Later Attempts: 0 of 1 used Submit