Casio CFX-9850GB PLUS, Руководство пользователя

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k
Student-
t
Distribution
u
Student-
t
Probability Density
Student-
t
probability density calculates
t
probability density from a specifi ed
x
value.
Perform the following key operations from the statistical data list.
5
(DIST)
2
(t)
1
(tpd)
Data is specifi ed using parameter specifi cation. The following shows the meaning of each
item.
x
................................. data
df
................................ degrees of freedom (
df
> 0)
Save Res .................... list for storage of calculation results (None or List 1 to 26)
Execute ....................... executes a calculation or draws a graph
After setting all the parameters, use
c
to move the highlighting to “Execute” and then press
one of the function keys shown below to perform the calculation or draw the graph.
•
1
(CALC) ... Performs the calculation.
•
6
(DRAW) ... Draws the graph.
Calculation Result Output Example
p .................................. Student-
t
probability density
f ( x ) =
Γ
Γ
df
π
–
df + 1
2
2
df
2
df + 1
df
x
2
1+
f ( x ) =
Γ
Γ
df
π
–
df + 1
2
2
df
2
df + 1
df
x
2
1+
# Current V-Window settings are used for
graph drawing when the Setup screen’s [Stat
Wind] setting is [Manual]. The V-Window
settings below are set automatically
when the [Stat Wind] setting is [Auto].
Xmin
= –3.2,
Xmax
= 3.2,
Xscale
= 1,
Ymin
= –0.1,
Ymax
= 0.45,
Yscale
= 0.1
6-7-7
Distribution