There are two kinds of normal tables. Those that read from the far left, and those that read from the middle. If you have the kind that reads from the far left, look up z = 0.73 and read .7673 If you have the kind that reads from the middle, look up z = 0.73 and read .2673. Then add 0.5000 and get 0.7673. The body is 0.7673 and the tail is 1.0000-0.7673 = 0.2327. Edwin