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Casio fx-9860GII Graphing Calculator Black
REFRREF function random integers unit conversion new types of regressions chi-squared GOF function 9 new probability functions pie charts bar graphs graph XfY and much more
1500 KB Flash ROM
Built-in eActivity and spreadsheet applications
Icon-based menu adds to overall intuitive usability
Direct connection to Casio projectors
Data transfer from unit-to-unit and from unit-to-computer