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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, compute the arithmetic mean for the following data:
Marks obtainedLess than 10Less than 20Less than 30Less than 40Less than 50Less than 60
Number of students142237586775
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Answer

Self

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