M G Cox et al 2006 Metrologia 43 S268 doi:10.1088/0026-1394/43/4/S14
M G Cox1, C Eiø1, G Mana2,3 and F Pennecchi2
Show affiliationsAn analysis is presented of the generalized weighted mean of a set of quantities, some or all of which may be correlated, and the variance associated with that mean. The cases covered specifically are (a) two correlated quantities, (b) a general number of quantities, two of which are correlated and (c) a general number of quantities, all of which are correlated. For (c), two instances are treated, namely where the quantity variances are equal and unequal. Consistency of the data representing realizations of the quantities concerned is shown to be important in terms of appreciating the results obtained.
06.20.Dk Measurement and error theory
02.50.-r Probability theory, stochastic processes, and statistics
07.05.Kf Data analysis: algorithms and implementation; data management
Issue 4 (August 2006)
Received 23 December 2005
Published 4 August 2006
M G Cox et al 2006 Metrologia 43 S268
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