In formula \(\rm \overline X=A+\frac{\Sigma fiμ i}{\Sigma f}\times h\), μi = ?

Explanation:

\(\rm \overline X=A+\frac{\Sigma fiμ i}{\Sigma f}\times h\)

where  Above formula is a step deviation formula.
In the above formula,
 \(\rm \overline X\) is data values,
A  is assumed mean,
 h is class size,
When class size is same we simplify the calculations of the mean by computing the coded mean of u₁, u₂, ........., u_n

Where μi = \(\rm \frac{xi-A}{n}\)

Hence, The Correct Answer is \(\rm \frac{xi-A}{n}\).