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Mathematics
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M T
  • Member for 11 years, 3 months
  • Last seen more than 9 years ago
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Hoping to start college in a few years for math.

Disclaimer:

I'm working through Rudin's "Principles of Mathematical Analysis" on my own, so I don't want the full answer. I'm only looking for a hint on this problem.

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How Should I ask Questions that I just need Hints on?
Oct 13, 2013
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26
How do I calculate the variance of the OLS estimator $\beta_0$, conditional on $x_1, \ldots , x_n$?
10
Is this proof sufficient to show that a concave function of a metric is also a metric?
8
How do I show that $(\hat{\beta_1}-\beta_1)$ and $ \bar{u}$ are uncorrelated, i.e. that $E[(\hat{\beta_1}-\beta_1) \bar{u}] = 0$?
7
How do I follow part of this simple proof that $\lim\limits_{n\to \infty} (a_n b_n) = a b$?
6
How do I use the standard regression assumptions to prove that $\hat{\sigma}^2$ is an unbiased estimator of $\sigma^2$?