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Module 01 · Data Analysis FoundationsFREE LESSON15 min

Where Data Comes From

Operational databases, spreadsheets, APIs, web forms, surveys, public datasets and logs.

By the end of this lesson you can

  • List five realistic data sources for a business question
  • Judge a source for reliability and freshness

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Types of Data — Qualitative and QuantitativeStructured, Semi-structured and Unstructured