如何使用卡方检验，检验一组数据是否为正态分布x<-c(36,36,37,38,40,42,43,43,44,45,48,48,50,50,51,52,53,54,54,56,57,57,57,58,58,58,58,58,59,60,61,61,61,62,62,63,63,65,66,68,68,70,73,73,75)