Examlex
Eight-year-old Harvey has a mental age of four. What is his intelligence quotient?
Class Mean
The average of a set of data points or values in a specific category or classification.
Standard Deviation
A measure of the amount of variation or dispersion of a set of values. It quantifies how spread out the numbers are.
Empirical Rule
A statistical rule stating that for a normal distribution, nearly all data will fall within three standard deviations of the mean.
Bell-Shaped
Describes the graphical form of a distribution that is symmetric around its mean, visually represented as a bell-shaped curve, typically associated with the normal distribution.
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