Standardize Features

Task

Use StandardScaler to standardize features so they have zero mean and unit variance.

Why It Matters

Many ML algorithms (SVM, KNN, neural networks) are sensitive to feature scales. If one feature ranges 0-1 and another 0-1000, the larger one dominates distance calculations. Standardization puts all features on equal footing.

Instructions

1. Examine the setup code and data
2. Modify the code to solve the puzzle
3. Click Run or press Ctrl+Enter to execute