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16 August 2012

7 March 2012

27 February 2012

12 January 2012

  • curprev 18:5018:50, 12 January 2012Nicolette Young talk contribs 510 bytes +510 Created page with '====The Mean or MTTF==== :• The mean of the lognormal distribution, <math>\bar{T}</math> , is given by: ::<math>\bar{T}={{e}^{\bar{{T}'}+\tfrac{1}{2}\sigma _{{{T}'}}^{2}}}</ma…'