In the formula bar{x} = A + frac{Sigma f_{i} | vedclass

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(A) The given formula $\bar{x} = A + \frac{\Sigma f_{i} d_{i}}{\Sigma f_{i}}$ is the Assumed Mean Method for calculating the mean of grouped data.In t

Vedclass · Accepted Answer

$x_{i} - A$

Vedclass · Answer

(A) The given formula $\bar{x} = A + \frac{\Sigma f_{i} d_{i}}{\Sigma f_{i}}$ is the Assumed Mean Method for calculating the mean of grouped data.In this formula,$A$ represents the assumed mean.$x_{i}$ represents the class mark (midpoint) of the $i^{th}$ class interval.$d_{i}$ is the deviation of the class mark from the assumed mean,which is defined as $d_{i} = x_{i} - A$.Therefore,the correct option is $A$.

In the formula $\bar{x} = A + \frac{\Sigma f_{i} d_{i}}{\Sigma f_{i}}$,$d_{i} =$ .........

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