Unit 1: Patterns in Data — an introduction to data analysis.
This first unit is about statistics—collecting, organizing, summarizing, and making inferences from data.
Lesson 1.1: Exploring Data
Key Questions
What is normal? How do you tell? Are you normal?
Objectives
When you are finished with this lesson, you will have demonstrated how to
- work in groups
- write responses to “describe,” “explain,” and “compare” questions
- interpret stem-and-leaf plots and bar graphs
- and use tables and graphs of measurement data to find an association between two variables.
Approximate completion time: 4 days
Lesson 1.2: Shapes and Centers
Key Questions
What does "typical" mean?
How can data sets have shape? How do you show it?Objectives
When you are finished with this lesson, you will have demonstrated how to
- organize and interpret distributions of data using graphical representations such as stem-and-leaf plots, number-line plots, and histograms.
- understand the properties of different measures of center
- and use graphing calculators or computers for creating histograms and finding the measures of center.
Approximate completion time: 8 days
Lesson 1.3: Variability
Key Questions
Is it ok to be different?
How do we measure how much things vary?Objectives
When you are finished with this lesson, you will have demonstrated how to
- explore the concept of variability
- understand and interpret percentiles
- understand the interquartile range as a measure of variability
- use graphical displays such as histograms and box plots to help analyze variability
- and understand the effect of linear transformations on the mean and mean absolute deviation.
Approximate completion time: 8 days
Lesson 1.4: Relationships and Trends
Key Questions
How do you decide when to compromise?
How do you tell where things are going?Objectives
When you are finished with this lesson, you will have demonstrated how to
- use scatterplots to find an association between two variables
- use the line y = x to analyze data on a scatterplot compare the information provided by various types of plots
- and analyze plots over time.
Approximate completion time: 6 days
Lesson 1.5: Looking Back
Key Question
Do you know the important aspects of "Patterns in Data"?
Objectives
The purpose of this lesson is for you to review the content from this unit so you can check that you are ready for the unit test.
Approximate completion time: 2 days
