A cartoon to be used in discussing summary statistics (comparing means ± error bars). One aspect of part of the graph for discussion shows an error bar going below zero for a variable that should be positive. The cartoon is #1793 in the web comic Piled Higher and Deeper by Panamanian cartoonist Jorge Cham (1976- ): see www.phdcomics.com/comics/archive.php?comicid=1793. Free for use in classrooms and course websites with acknowledgement (i.e. "Piled Higher and Deeper" by Jorge Cham, www.phdcomics.com)
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Free for Nonprofits