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

A symmetrical, bell-shaped curve that describes the probability of obtaining various combinations of chance events. It depicts the normal distribution, the frequency distribution of many physical and psychological attributes of humans and animals.

a bell-shaped, symmetrical curve showing the observed frequencies of a variable

The curve that results from the graphical portrayal of a normal distribution. It is usually symmetrical and â€œbell shapedâ€ in appearance with frequency (number of occurrences) shown on the vertical axis and the factor being sought, such as: price, size, etc. on the horizontal axis.

a symmetrical curve representing the normal distribution

a frequency curve used to represent a normal distribution

A curve of a probability distribution. It is also sometimes called a bell shaped curve. The curve is completely specified by its mean and standard deviation.

A graph describing the normal distribution in which more scores are found in the center and fewer scores are found at the extremes.

The normal curve is a smooth bell-shaped curve that is symmetrical around the mean; the curve can be computed with the use of an equation. Most educational and psychological variables, such as achievement and intelligence, have a normal bell-shaped distribution.

A bell-shaped curve that results when a normal distribution is graphed.

The normal curve ( also called the probability distribution and bell curve) is a theoretical distribution. When graphed, this distribution is unimodal and symmetric (called bell-shaped) and approximates the distribution of many variables in nature.

A frequency distribution curve with a symmetrical, bellshaped appearance.

a bell-shaped graph representing a hypothetical frequency distribution for a given characteristic. (648)

The plotted form of the normal distribution.