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MedCalc

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Values of the Normal distribution

area from -∞ to -z and z to ∞	area from -z to z	z

0.001	0.999	3.290527
0.002	0.998	3.090232
0.005	0.995	2.807034
0.01	0.99	2.575829
0.02	0.98	2.326348
0.05	0.95	1.959964
0.10	0.90	1.644854
0.20	0.80	1.281552
0.50	0.50	0.674490

area from z to ∞	area from -∞ to z	z
0.001	0.999	3.090232
0.002	0.998	2.878162
0.005	0.995	2.575829
0.01	0.99	2.326348
0.02	0.98	2.053749
0.05	0.95	1.644854
0.10	0.90	1.281552
0.20	0.80	0.841621
0.50	0.50	0.000000

See also