File:Virzis Formula.PNG

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	23:25, 2 January 2011		518 × 413 (8 KB)	File Upload Bot (Magnus Manske)	{{BotMoveToCommons\|en.wikipedia\|year={{subst:CURRENTYEAR}}\|month={{subst:CURRENTMONTHNAME}}\|day={{subst:CURRENTDAY}}}} {{Information \|Description={{en\|Chart showing the progress in detecting usability defects in usability testing with Virzi's binomial mo

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