MATHEMSTrd of 40 students of a class for the wholeA class teacher has – InterviewSolution

1.	MATHEMSTrd of 40 students of a class for the wholeA class teacher has the following absentee recoterm. Find the mean number of days a student was absent.Number of 0-6 6 10 10- 14 14 20 20 -28 28 -38 38-408.days44Number of110students
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