I common distribution functions, I normal distribution – Casio FX-9750GII User Manual

Page 179

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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.

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