Casio ALGEBRA FX 2.0 PLUS - Manual (Page 36)

20010101
u uu u uGeneral Confidence Interval Precautions
Inputting a value in the range of 0 < C-Level < 1 for the C-Level setting sets you value you
input. Inputting a value in the range of 1 < C-Level < 100 sets a value equivalent to your input
divided by 100.
# Inputting a value of 100 or greater, or a
negative value causes an error (Ma ERROR).
1-3-2
Confidence Interval (INTR)