The residual value is calculated using the formula:
\[ \text{Residual} = y - \hat{y} \]
where:
- \( y \) is the actual observed value,
- \( \hat{y} \) is the predicted value.
In this case, you're given:
- \( y = 195 \)
- \( \hat{y} = 192 \)
Substituting these values into the formula gives:
\[ \text{Residual} = 195 - 192 = 3 \]
So, the plotted residual value is 3.