Question about Casio CFX-9850G Plus Calculator

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I cant find the PROB button?

I have a math book that uses examples to work on with the casio cfx 9850 plus. The book says press PROB and i cant find it???
Hope someone can help me out?
Danny G

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OPTN -> *Next* -> PROB.

;)

Posted on Feb 06, 2009

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Press [MENU] Arrow to highlight [RUN], [EXE]. In [RUN] screen press [OPTN][F6->][F3: Prob]. Available commands are accessed by the soft menu keys
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Hello,
On the menu icon screen, highlight the Run icon. Press [OPTN][F6: ][F3:Prob] then [F1:x!].
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Hope it helps.

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