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Missing DCU student

CASE3 student Paul Bunbury is missing since Thur 2 Feb 2012. See appeals on crime.ie and garda.ie and facebook. He is a great coder. See DCU page and boards.ie page. He won major coding contests in 2010 and 2011. He is author of the brilliant "FloodItWorld". DCU can confirm that in Jan 2012 he passed all 6 modules comfortably.

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Mark Humphrys - Research - PhD - Appendix D - Appendix E

E Weighted sum and weighted mean

Consider a weighted sum of quantities :

A weighted mean is a weighted sum where such that . The ordinary mean is a special case of this with . A weighted mean may be greater than or smaller than the mean.

Appendix F

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