{
  "schema": "ml-prep/item@1",
  "item": {
    "id": "google-mlcc-linear-regression-quiz",
    "area": "machine-learning",
    "topic": "regression",
    "origin": "external",
    "title": "Linear regression knowledge check",
    "skills": [
      "linear-regression",
      "squared-loss",
      "gradient-update"
    ],
    "priority": "foundation",
    "difficulty": "easy",
    "estimated_minutes": 10,
    "prerequisites": [
      "algebra"
    ],
    "source_id": "google-mlcc",
    "locator": {
      "document": "Machine Learning Crash Course",
      "label": "Linear regression — Test your knowledge"
    },
    "links": {
      "problem": "https://developers.google.com/machine-learning/crash-course/linear-regression/test-your-knowledge",
      "solution": "https://developers.google.com/machine-learning/crash-course/linear-regression/test-your-knowledge"
    },
    "selection_note": "An authoritative interactive check of the regression objective and training loop.",
    "answer_status": "official-interactive-feedback"
  }
}