#FFA500}{\mathbf{y}}_i\)`.

&lt;!-- The accuracy of `\(\hat{\color{#FFA500}{\mathbf{y}}}\)` depends upon .hi-slate[two errors]: --&gt;

&lt;!-- 1. .hi-slate[Reducible error] The error due to `\(\hat{\color{#20B2AA}{f}}\)` imperfectly estimating `\(\color{#20B2AA}{f}\)`. --&gt;
&lt;!-- &lt;br&gt;*Reducible* in the sense that we can improve `\(\hat{\color{#20B2AA}{f}}\)`. --&gt;

&lt;!-- 1. .hi-slate[Irreducible error] The error component that is outside of the model `\(\color{#20B2AA}{f}\)`. --&gt;
&lt;!-- &