MathNugget
Junior Member
- Joined
- Feb 1, 2024
- Messages
- 195
Hello.
This is f(x,y)=yxy−1e−y1(0,∞)(y)1(0,1)(x)
Trying to find the marginal probability density of Y.
so I am supposed to solve:
fY(x,y)=∫−∞∞yxy−1e−y1(0,∞)(y)1(0,1)(x)dx=ye−y1(0,∞)(y)∫−∞∞xy−11(0,1)(x)dx=ye−y1(0,∞)(y)∫01xy−1dx=...now I suppose 1(0,∞)(y) tells me y > 0, so
∫xy−1dx=yxy∫01xy−1dx=y1?
Is it fY(x,y)=ye−y1(0,∞)(y)y1=e−y1(0,∞)(y)?
This is f(x,y)=yxy−1e−y1(0,∞)(y)1(0,1)(x)
Trying to find the marginal probability density of Y.
so I am supposed to solve:
fY(x,y)=∫−∞∞yxy−1e−y1(0,∞)(y)1(0,1)(x)dx=ye−y1(0,∞)(y)∫−∞∞xy−11(0,1)(x)dx=ye−y1(0,∞)(y)∫01xy−1dx=...now I suppose 1(0,∞)(y) tells me y > 0, so
∫xy−1dx=yxy∫01xy−1dx=y1?
Is it fY(x,y)=ye−y1(0,∞)(y)y1=e−y1(0,∞)(y)?
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