This article is rated Stub-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects:

Engineering This article is within the scope of WikiProject Engineering, a collaborative effort to improve the coverage of engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.EngineeringWikipedia:WikiProject EngineeringTemplate:WikiProject EngineeringEngineering articles ??? This article has not yet received a rating on the project's importance scale. Statistics Low‑importance This article is within the scope of WikiProject Statistics, a collaborative effort to improve the coverage of statistics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.StatisticsWikipedia:WikiProject StatisticsTemplate:WikiProject StatisticsStatistics articles Low This article has been rated as Low-importance on the importance scale.

"The most important goal of understanding the principle..." links to itself, (redirects to this same article). — Preceding unsigned comment added by 144.183.224.2 ( talk) 21:11, 13 April 2016 (UTC) reply