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Bài viết của Nguyễn Mỹ Hương

Modeling with Linear Functions

(credit: EEK Photography/Flickr) Emily is a college student who plans to spend a summer in Seattle. She has saved $3,500 for her trip and anticipates spending $400 each week on rent, food, and activities. How can we write a linear model to represent her ...

Tác giả: Nguyễn Mỹ Hương viết 16:05 ngày 25/05/2018 chỉnh sửa

Fiscal Policy and the Trade Balance

Government budget balances can affect the trade balance. As The Keynesian Perspective chapter discusses, a net inflow of foreign financial investment always accompanies a trade deficit, while a net outflow of financial investment always accompanies a trade ...

Tác giả: Nguyễn Mỹ Hương viết 16:05 ngày 25/05/2018 chỉnh sửa

The Relatively Recent Arrival of Economic Growth

Let’s begin with a brief overview of the spectacular patterns of economic growth around the world in the last two centuries, commonly referred to as the period of modern economic growth . (Later in the chapter we will discuss lower rates of economic ...

Tác giả: Nguyễn Mỹ Hương viết 16:05 ngày 25/05/2018 chỉnh sửa

Binomial Distribution

There are three characteristics of a binomial experiment. There are a fixed number of trials. Think of trials as repetitions of an experiment. The letter n denotes the number of trials. There are only two possible outcomes, called "success" and ...

Tác giả: Nguyễn Mỹ Hương viết 16:05 ngày 25/05/2018 chỉnh sửa

Sampling Experiment

Class Time: Names: Student Learning Outcomes The student will demonstrate the simple random, systematic, stratified, and cluster sampling techniques. The student will explain the details of each procedure used. In this lab, you will be asked ...

Tác giả: Nguyễn Mỹ Hương viết 16:05 ngày 25/05/2018 chỉnh sửa

Linear Functions

Shanghai MagLev Train (credit: “kanegen”/Flickr) Just as with the growth of a bamboo plant, there are many situations that involve constant change over time. Consider, for example, the first commercial maglev train in the world, the Shanghai ...

Tác giả: Nguyễn Mỹ Hương viết 16:05 ngày 25/05/2018 chỉnh sửa

Graphs of Linear Functions

Two competing telephone companies offer different payment plans. The two plans charge the same rate per long distance minute, but charge a different monthly flat fee. A consumer wants to determine whether the two plans will ever cost the same amount for a given ...

Tác giả: Nguyễn Mỹ Hương viết 16:04 ngày 25/05/2018 chỉnh sửa

Introduction to Consumer Choices

Investment Choices Higher education is generally viewed as a good investment, if one can afford it, regardless of the state of the economy. (Credit: modification of work by Jason Bache/Flickr Creative Commons) "Eeny, Meeny, Miney, ...

Tác giả: Nguyễn Mỹ Hương viết 16:04 ngày 25/05/2018 chỉnh sửa

Solving Systems with Cramer's Rule

We have learned how to solve systems of equations in two variables and three variables, and by multiple methods: substitution, addition, Gaussian elimination, using the inverse of a matrix, and graphing. Some of these methods are easier to apply than others ...

Tác giả: Nguyễn Mỹ Hương viết 16:04 ngày 25/05/2018 chỉnh sửa

Two Population Means with Unknown Standard Deviations

The two independent samples are simple random samples from two distinct populations. For the two distinct populations: if the sample sizes are small, the distributions are important (should be normal) if the sample sizes are large, the distributions are ...

Tác giả: Nguyễn Mỹ Hương viết 16:03 ngày 25/05/2018 chỉnh sửa