DISCUSS regression and correlation

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Nuffield Mathematics Activity DISCUSS regression
and correlation
CC Rudolf Stricker
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DISCUSS regression and correlation
How does the height of a plant depend on its age?

This activity is about finding relationships
between variables and measuring their strength.

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DISCUSS regression and correlation
Use the following online tutorial to learn about
regression and correlation
http//www.icse.xyz/discuss/regression/
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DISCUSS regression and correlation

• Reflect on your work

Explain what is meant by regression and
correlation.
What is the difference between interpolation and
extrapolation?
If you find that r 1, what can you say about
the relationship between the variables?
What if r 1?
What might a value of r near to zero indicate?
Correlation does not imply causation. Explain
what this means. Suggest a real-life example.