某公司10位员工的月工资(单位:元)为x1,x2,''',x10 ,其均值和方

某公司10位员工的月工资(单位:元)为x1,x2,''',x10 ,其均值和方差分别为和s2,若从下月起每位员工的月工资增加100元,则这个10位员工下月工资的均值和方差分别为(   )

A.,s2+1002       B.+100, s2+1002      C.,s2            D.+100, s2

答案

D

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