AFLATOUN social a

Given is the frequency distribution table for ungrouped data.

We have To find arithmetic mean of school wise savings in each mandal,

A common formula is: In ‘Amberpet’: Mean = Rs 359

In ‘Thriumalgiri’: Mean = Rs 413 Mean = Rs 195 Mean = Rs 228 Mean = Rs 200 Mean = Rs 837

For arithmetic mean of savings of all the school:

Mean of such ungrouped data is given by  Mean = 444

Thus, arithmetic mean of savings of all the schools is Rs 444.

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