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  3. Mathematics
  4. If di is the deviation of a class mark yi from 'a', the 'assumed mean' and fi is the frequency, then Mg = x + (1/∑ fi di), then x is

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Q. If $d_i$ is the deviation of a class mark $y_i$ from 'a', the 'assumed mean' and $f_i$ is the frequency, then $ M_{g} = x + \frac{1}{\sum f_{i} d_{i}}, then\,\, x \,is$

Statistics

Solution:

In the given formula 'x' is the assumed mean 'a'.