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Lesson 19 of 20 · about 16 min

Correlation

Ice cream sales and drownings rise and fall together. Does ice cream cause drowning? You'll learn to measure how strongly two things move together, train your eye with a guess-the-correlation game, and meet Simpson's paradox, where a trend reverses when you split the data into groups.

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In this lesson you'll learn:

  • Correlation r
  • Confounder (correlation ≠ causation)

Free to try in F07 Probability & Statistics:

The first 3 lessons of every course are free, no account needed.