This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Ldagaussvariancebig.svg en Plot of two normal distributed variables with big variance de Plot zweier Normalverteilter Variablen mit groer Varianz mathcal mathcal own MartinThoma ValidSVG Source is available at github TikZ diagrams Discriminant analysis Images by Martin Thoma Cczero