find out arithmetic mean, standard deviation and coefficient of variation

                                         organisations

A                       B

No. of workers                                                    10                     20

avg. daily wages                                                 30                     15

variance                                                              25                     100

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1 Answer

"meen" be the AVERAEJ

giv me sum numbers tu werk on

??????????????? "koeffishent av variashun" ????????????? never herd such a straenj thang
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