🌐EnglishEnglishDeutschEspañolFrançaisItalianoPolskiPortuguêsSvenskaРусскийالعربيةفارسیहिन्दीไทย한국어中文日本語EntityQ847822· pop 21· linked from 190 articles68–95–99.7 ruleAlso known as 68-95-99.7 rule, empirical rule, three sigma ruleshorthand used in statisticsAvailable in 20 languagesEspañolFrançais中文日本語PortuguêsItalianoالعربيةहिन्दीCzechEstonianHebrewConnectionsCartesian coordinate systemEntityconfidence intervalEntityCategoriesNormal distributionRules of thumbStatistical approximations