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patlidzan Forumaš(ica)
Pridružen/a: 05. 11. 2009. (19:17:28) Postovi: (76)16
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pmli Forumaš(ica)
Pridružen/a: 09. 11. 2009. (12:03:05) Postovi: (2C8)16
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Postano: 14:52 ned, 23. 10. 2011 Naslov: |
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Evo. :)[dtex]F_Y(x) = \mathbb{P}(Y \leq x) = \mathbb{P}\left(-\frac{1}{X} \leq x\right) = \mathbb{P}(x X \geq -1) = \left\{ \begin{array}{cl}
\mathbb{P}\left( X \leq -\frac{1}{x} \right), & x < 0 \\
1, & x = 0 \\
\mathbb{P}\left( X \geq -\frac{1}{x} \right), & x > 0 \\
\end{array} \right. = \left\{ \begin{array}{cl}
F_X\left( -\frac{1}{x} \right), & x < 0 \\
1, & x = 0 \\
1 - \underbrace{F_X\left( -\frac{1}{x} \right)}_{= 0}, & x > 0 \\
\end{array} \right. = \left\{ \begin{array}{cl}
e^{-(-x)^{\alpha}}, & x < 0 \\
1, & x \geq 0
\end{array} \right.[/dtex]
Evo. [dtex]F_Y(x) = \mathbb{P}(Y \leq x) = \mathbb{P}\left(-\frac{1}{X} \leq x\right) = \mathbb{P}(x X \geq -1) = \left\{ \begin{array}{cl}
\mathbb{P}\left( X \leq -\frac{1}{x} \right), & x < 0 \\
1, & x = 0 \\
\mathbb{P}\left( X \geq -\frac{1}{x} \right), & x > 0 \\
\end{array} \right. = \left\{ \begin{array}{cl}
F_X\left( -\frac{1}{x} \right), & x < 0 \\
1, & x = 0 \\
1 - \underbrace{F_X\left( -\frac{1}{x} \right)}_{= 0}, & x > 0 \\
\end{array} \right. = \left\{ \begin{array}{cl}
e^{-(-x)^{\alpha}}, & x < 0 \\
1, & x \geq 0
\end{array} \right.[/dtex]
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patlidzan Forumaš(ica)
Pridružen/a: 05. 11. 2009. (19:17:28) Postovi: (76)16
Spol:
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[Vrh] |
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pmli Forumaš(ica)
Pridružen/a: 09. 11. 2009. (12:03:05) Postovi: (2C8)16
Spol:
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[Vrh] |
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patlidzan Forumaš(ica)
Pridružen/a: 05. 11. 2009. (19:17:28) Postovi: (76)16
Spol:
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|
[Vrh] |
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