FDIST(x,dof1,dof2)
FDIST F- . @dof1 - is the numerator @dof2 is the denominator .
@x < 0, #NUM!. @dof1 < 1 @dof2 < 1, #NUM!.
Excel.
FDIST(2,5,5) 0.232511319.
FINV.