1 Introduction to data, variation, and distributions
In this unit, you will learn about data, and the fundamental idea behind statistics: data have variation.
Because data vary, a data set is distributed across a range of values. A distribution is the primary object that statisticians work with. You will learn how to describe and summarize distributions, including summarizing the “typical” value of a distribution and quantifying the variation in a distribution. Together, these help us determine the likely values in a distribution.
Finally, you will learn how to summarize the ways in which the distribution of one variable may be associated with another.
Outline and goals of Unit 1
The following schematic outlines the course readings and in-class activities for Unit 1.
|1.1 🔨 Truck braking|
|1.2 🔨 Describing distributions|
|1.3 📖 Describing distributions|
|1.4 🔨 Football kicking contest|
|1.5 📖 The mean and standard deviation|
|1.6 🔨 Statsical association|
|1.7 📖 Statistical association|
|1.8 📖 Linear regression|
|1.9 🔨 Review activity: Happiness|
|1.10 📖 Unit 1 summary|