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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