Based on my prior knowledge, I will analyze the relationship between the feature 'duration' and the task of determining whether the client subscribed to a term deposit or not.

To do this, I will examine the typical duration values for each target class ('no' and 'yes').

Here is the analysis and the corresponding dictionary:

```json
{
	"no": [120.0, 150.0, 180.0, 200.0, 240.0],
	"yes": [300.0, 350.0, 400.0, 450.0, 500.0]
}
```

This means that for the target class 'no', typical duration values may include 120.0 seconds, 150.0 seconds, 180.0 seconds, 200.0 seconds, and 240.0 seconds. 

On the other hand, for the target class 'yes', typical duration values may include 300.0 seconds, 350.0 seconds, 400.0 seconds, 450.0 seconds, and 500.0 seconds.