Definitions for "Normal curve"
As applied in psychology, the bell-shaped distribution of a measurable trait depicting most people in the middle and few at the extremes.
The familiar [Normal Distribution]] "bell curve". The mathematical expression for the normal curve is y = (2Ï€)-_e-x2/2. The normal curve is symmetric around the point x=0, and positive for every value of x. The area under the normal curve is unity, and the sd of the normal curve, suitably defined, is also unity.
Bell-shaped curve with known properties