lt;br&gt;*Irreducible* because we defined an error term `\(\color{#e64173}{\varepsilon}\)` unexplained by `\(\color{#20B2AA}{f}\)`. --&gt;

&lt;!-- Our goal is to minimize .hi-slate[reducible error]. --&gt;


&lt;!-- --- --&gt;
&lt;!-- ## How to predict --&gt;

&lt;!-- **How do we minimize reducible error** (and form the best predictions)? --&gt;

&lt;!-- The basic workflow for predictive analysis: --&gt;

&lt;!-- 1. **Choose** a model. --&gt;
&lt;!-- 2. **Train** the model (estimate its parameters). --&gt;