Linear algebra and summary statistics

Day 4

Thursday August 7th, 2025

Visual representations of nominal, ordinal, and binary variables. Left: Nominal (ordered descriptions) with illustrations below of a turtle, snail, and butterfly. Center: Ordinal (ordered descriptions) with illustrations below of three bees - one looks unhappy (saying 'I am unhappy'), one looks ok (saying 'I am OK'), and one looks very happy (saying 'I am awesome!'). Right: Binary (only 2 mutually exclusive outcomes), with below a T-rex saying 'I am extinct' and a shark saying 'HA.'

Artwork by Allison Horst

Class materials

Session Lecture slides Interactive session
day 4 / morning Linear algebra continued Linear algebra continued - vectors, matrices, a Leslie matrix example
day 4 / afternoon Essential summary statistics and describing data Data exploration and summary statistics - getting started

End-of-day practice

Complete the following tasks / activities before heading home for the day!

Additional Resources