Tail n Body Tail Mean to z Z Body Toll Mean to z 0.25 0.5987 0.4013 0.0987 1.55 0.9394 0.0606 0.4394 0.75 2.15 0.9842 0.0158 0.4842 1.10 0.8643 0.1357 0.3643 2.65 1.30 0.9032 0.0955 0.4032 2.80 0.9974 0.0026 0.4974 To find the probability of a z-score, position the orange line at the appropriate z-score on the horizontal axis. The areas under the standard normal airve to the left and right of the vertical line are displayed in bue and crange, respectively. (Hint: The standard normal distribution is symmetrical about the mean, the area under the curve to the left (and right) of the mean is 0.5. Therefore, the area that corresponds with Mean to z is computed as Larger Portion (Body or Tall) - 0.5.)