Casio fx-991ZA PLUS II User Manual

(SETUP) (Fix)
(VECTOR) (VctA)
(VECTOR) (Dot)
(VECTOR) (VctB)
(Abs) (VECTOR) (VctA)
(Abs) (VECTOR) (VctB)
(cos
-1
)
Distribution Calculations (DIST)
You can use the procedures below to perform seven different types of
distribution calculations.
1. Press
(DIST) to enter the DIST Mode.
2. On the menu that appears, select a distribution calculation type.
To select this type of calculation: Press this key:
Normal probability density (Normal PD)
Normal cumulative distribution (Normal CD)
Inverse normal cumulative distribution (Inverse Normal)
Binomial probability (Binomial PD)
Binomial cumulative distribution (Binomial CD)
Poisson probability (Poisson PD)
Poisson cumulative distribution (Poisson CD)
3. Input values for the variables.
• With Binomial PD, Binomial CD, Poisson PD, and Poisson CD, you
can input sample data and then perform calculations.
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Casio fx-991ZA PLUS II Specifications

General

Type	Scientific Calculator
Number of Functions	552
Equation Solver	Yes
Matrix Calculations	Yes
Complex Number Calculations	Yes
Integration	Yes
Differentiation	Yes
Memory	9 variables
Weight	95 g
Protective Case	Yes
Display	Natural Textbook Display
Power Source	Solar and Battery