Exploring categorical data

Lecture 4

Dr. Mine Çetinkaya-Rundel

Duke University
STA 101 - Fall 2023

Warm up

Check-in

• Daily check-ins for getting you thinking at the beginning of the class and reviewing recent/important concepts
• Go to Canvas and open today’s “quiz” titled 2023-09-11 Check-in
• Access code: ___ (released in class)
• “Graded” for completion

Announcements

• Lab 2 is due Thu, Sep 14 at 5 pm on Gradescope

• Mon, Sep 18 - Guest lecture on regression with Dr. Alex Fisher

• Wed, Sep 20 - Catch up day: no class, catch up with readings and interactive tutorials

Recap from last time

What is Simpson’s paradox?

Exploring categorical data

2020 Durham City and County Resident Survey

Sample survey questions - services

Sample survey questions - safety

Sample survey questions - demographics

Today’s focus

Application exercise

Go to Posit Cloud and start the project titled ae-04-Durham.