学生物应该了解的基本统计知识(PDF)

英文档，简介 Statisticsisthebranchofscientificmethodthatisconcernedwithcollecting, arranging,andusingnumericalobservationsordatathatarisefromnaturalphenomenaor experiment.Forourpurposes,statisticalmethodswillbeusefulinoneormoreofthe followingareas: 1.Reduc