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name: bias-variance
# Model accuracy
## The bias-variance tradeoff

Finding the optimal level of flexibility highlights the .hi-pink[bias]-.hi-purple[variance] .b[tradeoff.]

.hi-pink[Bias:] The error that comes from modeling `\(\color{#20B2AA}{f}\)` with the wrong structure.
- More flexible models are better equipped to recover complex relationships `\(\left( \color{#20B