Is it possible to draw a trend line on a scatter plot that shows no association?

Yes, it is possible to draw a trend line on a scatter plot that shows no association. In such cases, the trend line may be flat or have a very shallow slope, indicating that there is no clear relationship between the variables. However, statistical analysis, like calculating the correlation coefficient, would confirm the lack of association. Ultimately, while a trend line can be drawn, it may not provide meaningful insights if the data shows no correlation.