From prior knowledge, resting blood pressure (RestingBP) is measured in millimeters of mercury (mm Hg). Normal blood pressure for adults is typically considered to be systolic blood pressure less than 120 mm Hg and diastolic blood pressure less than 80 mm Hg.

To analyze the relationship between RestingBP and the presence of heart disease, we need to compare the RestingBP values for patients with and without heart disease.

Here is the dictionary with possible RestingBP values for each target class:

```json
{
    "no": [110.0, 115.0, 118.0, 121.0, 125.0],
    "yes": [135.0, 140.0, 145.0, 150.0, 155.0]
}
```

These values are just exemplary and can vary depending on the dataset being analyzed. However, to provide a starting point, I have included typical values that could indicate the presence or absence of heart disease.