Casio FX-300ES Scientific Calculator with 249 Built-in Functions, Black - Walmart.com
CASIO SCIENTIFIC CALCULATOR FX-190 WORKS | eBay
Casio FX-260 Solar Scientific Calculator | Engineer's Calculators Store
Black Trendy Casio FX-991CW Classwiz Non-Programmable Scientific Calculator
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-991ZA Plus II Advanced Scientific Calculator | Buy Online in South Africa | takealot.com