Chapter 10 TODO: Cross-Validation

10.1 TL;DR

What it does
TODO
When to do it
TODO
How to do it
TODO
How to assess it
TODO

10.2 What it does

TODO

10.3 When to do it

TODO

10.4 How to do it

TODO

10.5 How to assess it

TODO

10.6 Where to learn more

TODO