This is a simple question… I am confused with the conceptual difference between a Train | Validation | Test split and K-fold validation.
In K-fold, I understood, We train and validate on everything simultaneously. This is more preferred than having a standard validation set right?
What I mean is, 70 % Training, 15% Validation and 15% Testing
Instead of doing the above method cross validation, Why cant we use K folds and use 85% for both training and validating and remaining 15% as testing data?