Distributions and summary statistics

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	After class slides	Extra Examples
day 4 / morning	Essential summary statistics and describing data	Slides	Examples
day 4 / afternoon	No session.