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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
Hi guys! Half a year ago I bought a new casio fx-991ex. Recently 3 keys stopped working (optn, calc, left) though the cursor is blinking. I haven't spilled water over it nor
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