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0 votes
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in Mathematics by (130k points)

The following distribution shows the daily pocket allowance of children of a locality. The mean pocket allowance is Rs 18. Find the missing frequency;

Daily pocket
allowance (in )
11-13 13-15 15-17 17-19 19-21 21-23 23-25
Number of children 7 6 9 15 f 5 4

1 Answer

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Best answer

Let the assumed mean A=16 and class size h=2, here we apply step deviation method.

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