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moving average

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noun Statistics.
  1. one of a succession of averages of data from a time series, where each average is calculated by successively shifting the interval by the same period of time.
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Origin of moving average

First recorded in 1910–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for moving average

moving average

noun
  1. statistics (of a sequence of values) a derived sequence of the averages of successive subsequences of a given number of members, often used in time series to even out short-term fluctuations and make a trend clearerthe 3-term moving average of 4, 6, 8, 7, 9, 8 is 6, 7, 8
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012