Dr. Mark Humphrys

School of Computing. Dublin City University.

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Research - PhD - Appendix D - Appendix E



E Weighted sum and weighted mean

Consider a weighted sum of quantities tex2html_wrap_inline9210 :

displaymath9640

A weighted mean is a weighted sum where tex2html_wrap_inline9644 such that tex2html_wrap_inline9646 . The ordinary mean is a special case of this with tex2html_wrap_inline9648 . A weighted mean may be greater than or smaller than the mean.



Appendix F

Return to Contents page.



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