You may need to use the appropriate appendix table or technology to answer this question. Given that z is a standard normal random variable, compute the following probabilities. (Round your answers to four decimal places.) (a) P(0 Z 0.86) (b) P(-1.52 sz 0) (c) P(z > 0.42) (d) P(z -0.27) (e) P(z < 1.20) (f) P(zs-0.76)