Casio fx-991ES probability function

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gaolerman

Hi Guys

I need some one to help my to solve probability problems by Casio fx-991ES

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f(x)

gaolerman said:

Hi Guys

I need some one to help my to solve probability problems by Casio fx-991ES

Is it necessary to use that color and font

BTW, i don't see any MODE predefined for probability in the calc. u mention.
Using simple nPr and nCr may help.