DY0-001: CompTIA DataAIDemo

By CompTIA · Question Mode

QuestionQ77

Mathematics and Statistics

A data analyst is reviewing the correlation matrix for a new dataset to find issues that could negatively affect model performance. What is the analyst most likely looking for?

  • A Undersampling
  • B Multicollinearity
  • C Oversampling
  • D Overfitting
Explanation

A correlation matrix is used to detect highly correlated independent variables. Such strong relationships indicate multicollinearity, which can make model estimates unstable and make individual predictor effects difficult to interpret.

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