Gini Coefficient for Cookies
Two sisters split cookies unevenly; the younger reports the inequality to Dad using the Gini coefficient.
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Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2018-08-31-gini-coefficient-for-cookies/ (CC BY-NC 4.0)Transcript
Older sister: "3 cookies for me, 1 for you. It's fair because I'm older."
Younger sister: "Grrrr...."
Younger sister: "DAD! HER COOKIE ALLOCATION HAS A GINI COEFFICIENT OF 0.25!"
Dad (offscreen): "I told you girls, keep it below 0.2!"
Older sister (handing over a cookie): "Snitch."
Younger sister: "It's not snitching; it's transparency with our economic data."