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SME Note 2 This note is the note for statistical method in economics course. Made for quick check of important formulae. (poe) ASSUMPTIONS OF THE SIMP 阅读全文
posted @ 2022-12-01 20:59
miyasaka
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author: Miyasaka date: 2022-10-31 title: "Algorithm: Lecture 4. Divide-and-Conquer Homework" *In this work, all the index of array starts by 1. Questi 阅读全文
posted @ 2022-10-31 18:09
miyasaka
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Machine Learning Classification $$ \begin{aligned} &\text { sensitivity }=\frac{\text { true positive }}{\text { true positive }+\text { false negativ 阅读全文
posted @ 2022-10-31 16:58
miyasaka
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Linear Algebra and Linear Programming Duality Theory Primal and dual problems of LPs 如何理解？ $$ \bar{x}=\left(\begin{array}{l} x \ y \end{array}\right), 阅读全文
posted @ 2022-10-31 16:37
miyasaka
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Statistic Final Review Covariance Definition 4.2. The covariance of $X$ and $Y$ is $$ \operatorname{Cov}(X, Y)=\mathbb{E}(X Y)-\mathbb{E} X \cdot \mat 阅读全文
posted @ 2022-10-31 16:29
miyasaka
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LALP 3rd Continuous Assessment Q1 Suppose it makes $x$ product A and $y$ product B. Then the LP problem is: $$ \text{Maximize}\quad 2.4 x+2.6 y, \ \le 阅读全文
posted @ 2022-03-07 13:24
miyasaka
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Multivariable Analysis Clairaut’s theorem Suppose that two mixed $n$-th ordered partial derivatives of a function involve the same differentiations, b 阅读全文
posted @ 2022-03-07 13:22
miyasaka
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Question Consider the following linear programming problem $$ \begin{aligned} \begin{array}{ll} \text { Minimise } & -x_{1}-2 x_{2}-x_{3} \ \text { su 阅读全文
posted @ 2022-03-07 13:20
miyasaka
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Exercise $\mathbf{1}$ Question Consider the following statement. Let $g: \mathbb{R} \rightarrow \mathbb{R}$ denote the function given, for $x \in \mat 阅读全文
posted @ 2022-03-07 13:19
miyasaka
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