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Casio Classwiz fx-991EX Statistics | Find Mean, Variance, Standard Deviation & Summary Statistics - YouTube
International Chemistry Olympiad - IChO - For the competition purposes, all the competitors will be given a calculator Casio fx-991EX. The manual for the calculator can be downloaded from the following link:
![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 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](https://preview.redd.it/trying-to-calculate-the-first-and-third-quartile-with-my-v0-csddtepsntw91.jpg?auto=webp&s=9f27fa3fdd86bf662b8bb8bea9d0d4110b379091)