Question

The adjustment factor for the given discontinuous series is _______.

$\begin{array}{cc}No.ofhours& No.ofchildren\\ 0-5& 7\\ 6-10& 11\\ 11-15& 15\\ 16-20& 9\\ 21-25& 8\end{array}$

• A. 0.2
• B. 0.3
• C. 0.4
• D. 0.5

Answer 1

The correct option is D 0.5

The class intervals are discontinuous, so to get the continuous interval we need to adjust the interval.

Here, the difference between the upper limit of any class and the lower limit of the next class is 1.

So, adjustment factor $=\frac{1}{2}=\mathrm{0.5.}$