Cross-Validation Techniques Quiz

5 questions Pass: 70% +25 pts (50 with Pro)

Quiz covering Model Evaluation and Selection

What you'll be asked

  1. In the context of model evaluation, what is the primary purpose of cross-validation?
  2. When using K-Fold cross-validation, what happens to the training process as the value of 'K' increases?
  3. Which cross-validation technique is most appropriate for a classification problem with a highly imbalanced target class?
  4. You are working with time-series data on Azure. Why should you avoid using standard K-Fold cross-validation?
  5. In a Leave-One-Out Cross-Validation (LOOCV) scenario with a dataset of size N, which of the following statements is true regarding the model's variance?

Answers and explanations come after you submit.