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What is the main goal of feature scaling?

Practice Questions

Q1
What is the main goal of feature scaling?
  1. To reduce the number of features
  2. To ensure all features contribute equally to the distance calculations
  3. To improve the interpretability of the model
  4. To increase the complexity of the model

Questions & Step-by-Step Solutions

What is the main goal of feature scaling?
  • Step 1: Understand that features are the different pieces of data we use in a model.
  • Step 2: Realize that features can have different ranges (like age from 0-100 and income from 0-100,000).
  • Step 3: Know that some algorithms (like K-Nearest Neighbors) use distance to make decisions.
  • Step 4: Understand that if features are on different scales, the algorithm might be biased towards the feature with the larger range.
  • Step 5: Learn that feature scaling adjusts the features to a similar scale, so they contribute equally to the distance calculations.
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