The formula to find the mean of a grouped dat | vedclass

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(A) The mean $(\bar{x})$ of grouped data using the direct method is calculated by the formula: $\bar{x} = \frac{\sum f_{i} x_{i}}{\sum f_{i}}$,where $

Vedclass · Accepted Answer

$\bar{x}=\frac{\Sigma f_{i} x_{i}}{\Sigma f_{i}}$

Vedclass · Answer

(A) The mean $(\bar{x})$ of grouped data using the direct method is calculated by the formula: $\bar{x} = \frac{\sum f_{i} x_{i}}{\sum f_{i}}$,where $f_{i}$ is the frequency of the $i^{th}$ class interval and $x_{i}$ is the class mark (midpoint) of the $i^{th}$ class interval. The sum $\sum f_{i}$ is often denoted by $N$ or $n$,representing the total number of observations.

The formula to find the mean of a grouped data by the direct method is .........

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