State the limitations of graphical method.

1.	State the limitations of graphical method.
Answer» The limitation of graphical method are as follows : In this method different people draw different curves. Hence, the uniformity is not maintained in the trend and its estimates. This is not a mathematical method. So it is not possible to know the reliability of the estimates. The exact form of the trend line of the series cannot be obtained by this method. When the plotted points of the time series are widely scatter from one another, then instead of drawing an unique curve of the trend of the time series, more than one curve can be drawn representing the trend.

Answer»

The limitation of graphical method are as follows :

In this method different people draw different curves. Hence, the uniformity is not maintained in the trend and its estimates.
This is not a mathematical method. So it is not possible to know the reliability of the estimates.
The exact form of the trend line of the series cannot be obtained by this method.
When the plotted points of the time series are widely scatter from one another, then instead of drawing an unique curve of the trend of the time series, more than one curve can be drawn representing the trend.

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