X = A + ∑fidi/∑fi is the formula to find mean for an ungrouped data. In this formula letter A represents for
\(\overline{X}\) = A + \(\frac{∑f_id_i}{∑f_i}\) is the formula to find mean for an ungrouped data. In this formula letter A represents for
A) Assumed mean
B) Arithmetic mean
C) Frequency
D) Deviation value
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