Let z denote a random variable having a normal distribution with = 0 and = 1 . Determine each of the following probabilities. (Round all answers to four decimal places.) (a) P ( z < 0.3 ) = (b) P ( z < 0.3 ) = (c) P ( 0.40 < z < 0.84 ) = (d) P ( 0.84 < z < 0.40 ) = (e) P ( 0.40 < z < 0.84 ) = (f) P ( z > 1.26 ) = (g) P ( z < 1.49 or z > 2.50 ) = .