Casio Classwiz - Mean & Standard Deviation Grouped Continuous Data using Calculator FX-991EX FX991EX - YouTube
Data, Roller Coaster's and Using Scientific Calculator for Statistics (fx- 991EX Classwiz w/QR code) – Blog: Strategies, Resources, & EdTech Tips
A Level Mathematics on the Casio fx-991EX... by Brown, Dr Allen
Casio fx-991EX Classwiz for High School... by Getling, David
Normal PDF & CDF distribution on Casio fx-991EX Classwiz - App #7 [SAT, A-Level, Statistics 2020] - YouTube
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