Example: Correlation coefficient intuition | Mathematics I | High School Math | Khan Academy

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Sal explains the intuition behind correlation coefficients and does a problem where he matches correlation coefficients to scatter plots.

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High School Math on Khan Academy: Did you realize that the word "algebra" comes from Arabic (just like "algorithm" and "al jazeera" and "Aladdin")? And what is so great about algebra anyway? This tutorial doesn't explore algebra so much as it introduces the history and ideas that underpin it.

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