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20 children are selected for a district level spelling test. The distribution of their marks out of 50 marks is given below. Find coefficient of mean deviation. Marks No. of children: 0 - 9 10 - 19 20 - 20 overline 30 - 30 overline 40 - 40 3 6 2

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20 children are selected for a district level spelling test. The distribution of their marks out of 50 marks is given below. Find coefficient of mean deviation. Marks No. of children: 0 - 9 10 - 19 20 - 20 overline 30 - 30 overline 40 - 40 3 6 2
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Verify that \( 1=0 . \overline{9} \)
asked Dec 17, 2023 in Tamilnadu Board by pramila0262 (25 points)

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