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
CASIO fx-991ARX – Casio
Casio fx-991EX Classwiz for High School Students: Getling, David: 9781548247102: Amazon.com: Books
Getting Started with Casio Classwiz FX-991EX FX-87DEX FX-570EX Calculator - 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:
Casio fx 21 : Free Download, Borrow, and Streaming : Internet Archive
Casio fx-991EX Classwiz for High School Students: Getling, David: 9781548247102: Amazon.com: Books