Boys and girls In 2002 the journal Science reported thata study of women in Finland indicated that having sonsshortened the lifespans of mothers by about 34 weeks person, but that daughters helped to lengthen the mothers’lives. The data came from church records from the period1640 to 1870.

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.