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STAT 20: Introduction to Probability and Statistics

- Announcements
- Concept Questions
- Problem Set 2:
*Summarizing Categorical Data* *Break*- Introducing Lab 1
- Work time for Lab 1: Understanding Context

- RQ: Summarizing Numerical Data due
**Wednesday at 11:59pm**on Gradescope.

- Quiz 1 next
**Monday, January 29th**in-class. Topics covered:- Understanding the World with Data
- Taxonomy of Data
- Summarizing Categorical Data (today)
- Summarizing Numerical Data (next class)

- Lab 1 (Class Survey) due
**Tuesday, January 29th at 9am**on Gradescope. Make sure you read the Lab Submission Guidelines posted to Ed!

- Problem Set 2 due
**Tuesday, January 29th at 9am**on Gradescope

- The next four subquestions are based on the same table.

The table below displays data from a survey on a class of students.

What proportion of the class was in the marching band?

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What proportion of those in the marching band where juniors?

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What proportion were sophomores not in the marching band?

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What were the dimensions of the raw data from which this table was constructed?

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How would you characterize the association between these two variables?

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Political affiliation and college degree status of 500 survey participants.

Which group is the largest?

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What does this plot show?

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Let’s visit the lab slides, which are available on stat20.org!

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