From the data given below calculate a coefficient of skewness based on percentiles: Marks Number of Students Less than 10 4 Less than 20 10 Less than 30 30 Less than 40 40 Less than 50 47 Less than 60 50

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Q: 6. D,= - D, =, Class Intervals 20-24 3 25-29 8. 30-34

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