Distribution Calculations (Dist) - Casio fx-991ZA Plus User Manual

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Distribution Calculations (DIST)

You can use the procedures below to perform seven different types of
distribution calculations.
1. Press Nc1(DIST) to enter the DIST Mode.
2. On the menu that appears, select a distribution calculation type.
To select this type of calculation:
Normal probability density
Normal cumulative distribution
Inverse normal cumulative distribution
Binomial probability
Binomial cumulative distribution
Poisson probability
Poisson cumulative distribution
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.
4. After inputting values for all of the variables, press =.
• This displays the calculation results.
• Pressing = or A while a calculation result is displayed will return to
the input screen of the first variable
Note: • To change the distribution calculation type after you enter the DIST
Mode, press !1(STAT/DIST)1(Type) and then select the distribution
type you want. • Distribution calculation accuracy is up to five significant
digits.
Variables that Accept Input
The following are distribution calculation variables that accept input values.
Normal PD ...........................
Normal CD ........................... Lower, Upper, σ,
Inverse Normal .................... Area, σ,
Binomial PD, Binomial CD ...
Poisson PD, Poisson CD .....
: data, σ: standard deviation (σ
x
upper boundary, Tail: probability value tail specification, Area: probability
value (0 Area
probability (0
1c(cos
x
x
x
1), List: sample data list, N: number of trials, p: success
p 1)
VctB))=
–1
)G)=
, σ,
(Tail setting always left.)
(or List), N, p
(or List),
0), : mean, Lower: lower boundary, Upper:
EN-39
VCT VCT
VCT VCT
Press this key:
1(Normal PD)
2(Normal CD)
3(Inverse Normal)
4(Binomial PD)
c1(Binomial CD)
c2(Poisson PD)
c3(Poisson CD)
FIX FIX
FIX FIX