X​  = A + ∑fidi/∑fi is the formula to find mean for an ungrouped data. In this formula letter A represents for  ​

Monjur Alahi

\(\overline{X}\) = 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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2 Answers

Salim Ahmed Kawsar

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Correct option is (A) Assumed mean

In formula \(\overline X = A + \frac{\sum f_i d_i}{\sum f_i} ,\) letter A represents for assumed mean.

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Salim Ahmed Kawsar

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A) Assumed mean

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