quantile

n. a value in a series of values in ascending order below which a given percentage of values lies; for example, a 50% quantile (also called a median) is the point at which 50% of the values fall below that value (and 50% above). Other types of quantile are quartiles, dividing the series into four equal-sized groups; deciles, dividing it into 10 groups; and percentiles (or centiles), dividing it into 100 groups. Also called fractile.

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Psychology term of the day

July 27th 2024

defensible space

a set of principles and guidelines for the design and planning of settings to reduce crime. Among the critical elements of defensible space are the creation of shared territories in which people have collective control, good surveillance, and markers and other symbols of ownership and primary territory. See territoriality.