Mean & total using Statistics (STAT) mode & ordering a fraction, decimal and % (Casio) - YouTube
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Casio fx-300ES Plus2 Black Scientific Calculator - Shop Tools & Equipment at H-E-B
Amazon.com : Casio fx-300ES PLUS Scientific Calculator; SAT Compatible; Natural Textbook Display; Math, Trigonometry, Statistics, Algebra, Geometry and Physics Functions; Comes with Slide-on Hard Case; Black : Office Products