2001-06-16

heteroscedastic

A term from statistics meaning "of unequal scatter or variation; having different variances". Often used to refer to measurement data sets with the property that for higher average values of the measurement, the variance among individual measurements increases.

In a time series (such as for a stock price), heteroscedasticity refers to a change in volatility over time.

For your amusement, follow this link to the lyrics for a song that uses the word.

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