Casio Scientific Calculator - (fx-991EX) : CASIO

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Designed for the fx-991EX and 570EX models

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High-resolution LCD shows more of your work to minimize scrolling Advanced calculations let you quickly work through multi-step problems Online

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Trying to calculate the first and third quartile with my casio fx-991EX but I'm not getting accurate results, any help? The correct quartiles are: Q1= 2.75 , Q3= 7.25 : r/calculators

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