Simplifying conditional variations
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$$ \boldsymbol{Q}=\left[\begin{matrix}\frac{625}{4}&\frac{125}{2}\\[0.5em] \frac{125}{2}&25\\\end{matrix}\right]0.04=\left[\begin{matrix}6.25&2.5\\2.5&1\\\end{matrix}\right] $$
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