Q.State the limitations of graphical method to measure trend.

The graphical method is subjective, non-mathematical, imprecise and unreliable for prediction.

Limitations of the graphical (free-hand) method of measuring trend:

1. Subjective / arbitrary — the trend line is drawn by eye, so different people obtain different lines from the same data.
2. No mathematical basis — it is not derived from any formula (unlike the method of least squares), so it lacks objectivity.
3. No exact measurement — it does not give a precise numerical trend value or trend equation. …