5.2b Standard Normal Distribution Tables
The characteristics of the tables of the standard normal distribution, N (0, 1) are:
Case 1
P (Z > a) is the area of the shaded region in the above diagram.
Case 2
P (–∞ < Z < ∞) = 1
Case 3
P (Z > 0) = P (Z < 0) = 0.5
Case 4
P (Z > a) = P (Z < –a)