20010101
k
k
k
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k
Student-
t
Distribution
u
uu
u
u
Student-
t
Probability Density
Student-
t
probability density calculates
t
probability density from a specified
x
value.
f
(
x
) =
Γ
Γ
df
π
–
df
+
1
2
2
df
2
df
+ 1
df
x
2
1+
Perform the following key operations from the statistical data list.
5
(DIST)
c
(T)
b
(P.D)
Data is specified using parameter specification. 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 20)
Execute ....................... executes a calculation or draws a graph
After setting all the parameters, align the cursor with [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
# Current V-Window settings are used for
graph drawing when the SET UP 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
1-4-7
Distribution (DIST)
20011101
