outlier

/ˈaʊtˌlaɪər/ noun [C]

Definition

› a fact, figure, piece of data, etc. that is very different from all the others in a set and does not seem to fit the same pattern: Eliminating one or two obvious outliers, charges range from 0.45% per annum to 3.67% per annum. The poll that showed him increasing support by 5 points was probably an outlier.

(Definition of outlier noun from the Cambridge Business English Dictionary © Cambridge University Press)

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