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Digital SAT Test 2 Module 1 (14)

1/7/2023

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2023 Digital SAT Math

12/27/2022

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Preparing for the Digital SAT for International Students

12/15/2022

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Introduction to Residuals and Least Squares Regression

10/7/2022

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Proof: Perpendicular Lines Have Negative Reciprocal Slope

10/5/2022

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Transitioning to the Digital SAT Suite of Assessments

2/24/2022

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211006 TI在SAT Math與AP Stat解題實戰解析

10/24/2021

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2017-2018 Margin of Error

6/5/2018

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2017/12/2 SAT Math
*Calculator (27)
Jasmine and Daniel are each conducting a survey among the 1,190 students at the North High School to determine the proportion of students who would be interested in a new after-school sports club. Jasmine randomly selected 100 students to survey, and Daniel randomly selected 50 students to survey. In both surveys, 34% of students indicated they are interested. If J represents the margin of error for Jasmine’s sample proportion, D represents the margin of error for Daniel’s sample proportion, and both students have the same amount of confidence in their results, which of the following is most likely true?
(A) J<D
(B) J>D
(C) J=D
(D) The relationship between J and D cannot be determined.
亞太區考題改寫

2018/5/5 SAT Math
*
Calculator (27)
An ecologist selected a random sample of 50 prairie dogs from a colony and found that the mean mass of the prairie dogs in the sample was 0.94 kilograms (kg) with an associated margin of error of 0.12 kg. Which of the following is the best interpretation of the ecologist’s findings?
(A) All prairie dogs in the sample have a mass between 0.82 kg and 1.06 kg.
(B) Most prairie dogs in the colony have a mass between 0.82 kg and 1.06 kg.
(C) Any mass between 0.82 kg and 1.06 kg is a plausible value for the mean mass of the prairie dogs in the sample.
(D) Any mass between 0.82 kg and 1.06 kg is a plausible value for the mean mass of the prairie dogs in the colony.
亞太區考題改寫
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Variance of Binomial Variable

12/14/2017

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2017/12/2 SAT Math
*其中一題相關公式證明
該題有關標準差計算比較
計算機解法限APcore學生

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TI-Nspire CX CAS Exponential Regression ab^x

11/9/2017

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2017/11/4 SAT II Math Level 2
*其中一題參考解法
該題數字雖不同
但解法過程一樣
參考(27)練習計算

2018/3/10 SAT Math
*Calculator (22)也有出現
Linear Regression確認答案
Exponential Regression排除答案


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" There are infinite ways to decompose a given vector. Nevertheless, there only exists one way to add two given vectors. "
                          --- vectors decomposition


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