Gamecocks99
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### Questions (71)

 5 $X=\{a,b,c\}$ and $\mathcal{T}=\{X, \emptyset, \{a\}, \{b\}, \{a,b\}\}$. Determine if $f:X \rightarrow X$ is $\mathcal{T}-\mathcal{T}$ Continuous 5 Are the following sets open subsets of $\mathbb{R}$ 5 Let G be a group and let $a\in G$. Define $F_a:G\mapsto G$ via $F_a(x)=axa^{-1}$ for all $a\in G$. Prove that $F_a$ is an isomorphism from G onto G 3 Show that $(1-\frac{1}{n})^{\sum_{i=1}^n X_i}$ is an unbiased estimator of $\tau(\theta)=e^{-\lambda}$ 3 Prove: A subset V of $\mathbb{R}$ is open iff V is equal to a union of open intervals

### Reputation (414)

 +5 Show that the LS estimator b is unbiased for $\beta$ when regressing without intercept +5 Find the solution of the given initial value problem $y^{(4)}-4y'''+4y''=0$ +5 Show that $(1-\frac{1}{n})^{\sum_{i=1}^n X_i}$ is an unbiased estimator of $\tau(\theta)=e^{-\lambda}$ +5 Definition of a Ring

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### Tags (29)

 0 statistics × 15 0 probability-theory × 6 0 abstract-algebra × 14 0 probability-distributions × 4 0 general-topology × 13 0 finite-groups × 4 0 differential-equations × 11 0 probability × 3 0 group-theory × 8 0 elementary-set-theory × 3

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 Mathematics 414 rep 311 Cross Validated 106 rep 1 Programmers 101 rep Stack Overflow 93 rep 1