I common distribution functions, I normal distribution – Casio FX-9750GII User Manual
Page 179
6-39
•
(DIST)(NORM) ... Normal distribution (page 6-39)
(t) ... Student-
t
distribution (page 6-41)
(CHI) ... C
2
distribution (page 6-42)
(F) ...
F
distribution (page 6-43)
(BINM) ... Binomial distribution (page 6-44)
(E)(POISN) ... Poisson distribution (page 6-46)
(E)(GEO) ... Geometric distribution (page 6-47)
(E)(H.GEO) ... Hypergeometric distribution (page 6-49)
After setting all the parameters, use
A to move the highlighting to “Execute” and then press
one of the function keys shown below to perform the calculation or draw the graph.
•
(CALC) ... Performs the calculation.
•
(DRAW) ... Draws the graph.
I Common Distribution Functions
• V-Window settings for graph drawing are set automatically when the Setup screen’s “Stat
Wind” setting is “Auto”. Current V-Window settings are used for graph drawing when the “Stat
Wind” setting is “Manual”.
• After drawing a graph, you can use the P-CAL function to calculate an estimated
p
-value for
a particular
x
value. The P-CAL function can be used only after a Normal Probability Density,
Student-
t
Probability Density,
Ƶ
2
Probability Density, or
F
Probability Density graph is drawn.
The following is the general procedure for using the P-CAL function.
1. After drawing a distribution graph, press
x
value
input dialog box.
2. Input the value you want for
x
and then press
U.
• This causes the
x
and
p
values to appear at the bottom of the display, and moves the
pointer to the corresponding point on the graph.
3. Pressing
T or a number key at this time causes the
x
value input dialog box to reappear
so you can perform another estimated value calculation if you want.
4. After you are finished, press
) to clear the coordinate values and the pointer from the
display.
• Executing an analysis function automatically stores the
x
and
p
values in alpha variables X
and P, respectively.
I Normal Distribution
• Normal Probability Density
(DIST)(NORM)(NPd)
Normal Probability Density calculates the probability
density (
p
) for a specified single
x
-value or a list. When a
list is specified, calculation results for each list element are
displayed in list form.