answer my question please
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First of all, find the class mark of all the classes (i.e.200-250,250-300, and so on)
Class mark of a given class
=Upper class limit (i.e.250)/2+lower class limit(i.e.200)/2
=225
Mean = Sum of all submissions/No. of submissions
=225x12+275x14+325x8+375x6+425x10/No. of submissions (No. of workers in this case)
=16325/110
=148.40
Therefore, average wage /mean wage is Rs.148.40
Class mark of a given class
=Upper class limit (i.e.250)/2+lower class limit(i.e.200)/2
=225
Mean = Sum of all submissions/No. of submissions
=225x12+275x14+325x8+375x6+425x10/No. of submissions (No. of workers in this case)
=16325/110
=148.40
Therefore, average wage /mean wage is Rs.148.40
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