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math-340:m340-f15-hw:hw-26 [2015/11/08 10:31] – created dcs | math-340:m340-f15-hw:hw-26 [2015/11/10 16:40] (current) – dcs | ||
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- $f_{X,Y}(x, y) = \begin{cases} 24xy,& \text{if } x > 0, y > 0, x + y < 1,\\ 0,& \text{otherwise}.\end{cases}$. | - $f_{X,Y}(x, y) = \begin{cases} 24xy,& \text{if } x > 0, y > 0, x + y < 1,\\ 0,& \text{otherwise}.\end{cases}$. | ||
- $f_{X,Y}(x, y) = \begin{cases} e^{-y},& | - $f_{X,Y}(x, y) = \begin{cases} e^{-y},& | ||
+ | |||
+ | Answers: | ||
+ | |||
+ | - 0.4924 | ||
+ | - $-\frac{1}{11}$ | ||
+ | - $-\frac{2}{3}$ | ||
+ | - $\frac{1}{\sqrt{2}}$ |