The document provides the probabilities for various z-values in a standard normal distribution: a) the probability of z falling between -1.96 and 1.96 is 95%; b) the probability of z falling above 1.64 is 5%; c) the probability of z falling below -1.96 is 2.5%; d) the z-value that cuts off the upper 5% of the distribution is 1.645; e) the z-value that cuts off the lower 1% of the distribution is -2.33.