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Measures of Central Tendency (Mean) — Mathematics STD 10 — Question

ICSE BoardEnglish MediumSTD 10MathematicsMeasures of Central Tendency (Mean)4 Marks
Question
By using step-deviation method, find the mean marks obtained by a student from the following data:
Marks0 and above10 and above20 and above30 and above40 and above50 and above60 and above70 and above80 and above90 and above100 and above
Number of students80777265554328161080
✓

Answer

Self

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