How should the imputations be addressed in the validation data?

While building a predictive model, median imputations are performed while preparing the training data.

How should the imputations be addressed in the validation data?
A . The imputed values are irrelevant to the validation data, and are not used.
B . The imputed values must be applied directly to the validation data without recalculation.
C . The imputed values must be recalculated using the validation data.
D . The imputed values must be recalculated using both the training and the validation data.

View Answer

Answer: C