exercise:7fbd0cc4f4: Difference between revisions
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Determine <math>\operatorname{Cov}(T,S)</math>. | Determine <math>\operatorname{Cov}(T,S)</math>. | ||
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<li>-56.25</li> | <li>-56.25</li> | ||
<li>0</li> | <li>0</li> | ||
Latest revision as of 23:47, 6 July 2024
The variables [math]S[/math] and [math]T[/math] have the joint density function
[[math]]
f(s,t) = \begin{cases}
\frac{2}{675}, \quad 0 \lt s \lt 15, 0 \lt t \lt 3s \\
0, \quad \textrm{otherwise}
\end{cases}
[[/math]]
Determine [math]\operatorname{Cov}(T,S)[/math].
- -56.25
- 0
- 18.75
- 68.75
- 168.75