Area under standard normal distribution z 20.00-0.02-0.04-0.06-0.08 3.00.00130.00130.00120.00l10.0010 2.50.00620.00590.00550.00520.0049 -2.00.02280.02170.02070.01970.0188 -1.90.02870.02740.02620.02500.0239 1.60.05480.05260.05050.04850.0465 1.0015870.15390.14920.14460.1401 0.50.30850.30150.29460.28770.2810 00.50000.49200.48400.47610.4681 Z is the standard score, that is the units of standard deviation16 Area under standard normal distribution (Z) Z 0.00 -0.02 -0.04 -0.06 -0.08 -3.0 0.0013 0.0013 0.0012 0.0011 0.0010 -2.5 0.0062 0.0059 0.0055 0.0052 0.0049 -2.0 0.0228 0.0217 0.0207 0.0197 0.0188 -1.9 0.0287 0.0274 0.0262 0.0250 0.0239 -1.6 0.0548 0.0526 0.0505 0.0485 0.0465 -1.0 0.1587 0.1539 0.1492 0.1446 0.1401 -0.5 0.3085 0.3015 0.2946 0.2877 0.2810 0 0.5000 0.4920 0.4840 0.4761 0.4681 Z 0 Z is the standard score, that is the units of standard deviation