Dataset Structure and Format Quiz

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

Quiz covering Design a Machine Learning Solution

What you'll be asked

  1. When preparing a dataset for supervised machine learning, which column should contain the value you want the model to predict?
  2. Which file format is generally preferred for storing large tabular datasets in machine learning due to its ability to preserve data types and support efficient compression?
  3. You are dealing with a dataset where the target variable has a massive imbalance (e.g., 99% class A, 1% class B). What is the most appropriate action to take during the data preparation phase?
  4. Why is it critical to perform a train-test split before applying feature scaling techniques like standardization or normalization?
  5. You have a dataset with high-dimensional categorical features. Which data transformation strategy is most likely to cause a 'curse of dimensionality' issue?

Answers and explanations come after you submit.