Find the correct answer from the alternatives given. The formula … - Vidyadip

Question

Find the correct answer from the alternatives given.
The formula to find mean from a grouped frequency table is $\bar{x}=A \frac{\sum f_i u_i}{\sum f_i} \times h g$
In the formula $u_i$ =……
A. $\frac{X_1+A}{g}$
B. $(x,-A)$
C. $\frac{X_1-A}{g}$
D. $\frac{A-X_i}{g}$

✓

Answer

Among the given option, $\left(X_i-A\right) / g$ is the correct option.
Where $X_i=$ values in the given data corresponding to $i^{\text {th }}$ position.
$ A=\text { Assumed mean }$
$\mathrm{g}=\text { class size }$
Thus, (C) is the correct option.

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