Recent content by thenava
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Calculating conditional expected value
Homework Statement Hi All, I have a homework question that I would like some hints on. I am given X and Y with uniform densities on [0,2], and Z := X+Y. The end goal is to find E[X|Z]. Now I know I can use symmetry to argue that E[X|Z] = E[Y|Z], and that E[X|Z] + E[Y|Z] = E[Z|Z] = Z, so...- thenava
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- Conditional Expected value Value
- Replies: 1
- Forum: Calculus and Beyond Homework Help
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Graduate Dog Colors (an inductive proof)
Hey thanks for the help CRGreathouse, and Rogerio.- thenava
- Post #4
- Forum: Set Theory, Logic, Probability, Statistics
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Graduate Dog Colors (an inductive proof)
I didn't really know where else to post this, it has a set, so I figured here would be the best place. The question is to find the flaw in this argument. Claim: In every set of n dogs, all dogs have the same color. Proof: By induction on n. Basis: Take n = 1. In every set containing one...- thenava
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- Proof
- Replies: 3
- Forum: Set Theory, Logic, Probability, Statistics
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Graduate A question on why Special Relativity holds
Thank you very much.- thenava
- Post #3
- Forum: Special and General Relativity
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Graduate A question on why Special Relativity holds
I was once told that the reason that the following two questions are fundamentally the same: 1) Are laws of Electricity and Magnetism are the same for all inertial reference frames? 2) The speed of light is 3.0*10^8 with respect to what? I can fathom how Einstein could have shown the...- thenava
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- Relativity Special relativity
- Replies: 7
- Forum: Special and General Relativity