Let z denote a random variable that has a standard normal distribution. Determine each of the probabilities below. (Round your answers to four decimal places.) I USE SALT (a) P(z < 2.38) (b) P(z 2.38) (c) P(z < -1.22) (d) P(1.12 3) (g) P(z-3.39) PLZ 4.971