Casio fx-9860G SD User Manual page 353

k k k k k Student-t Distribution
u u u u u Student-t Probability Density
t
Student- probability density calculates
f (x) =
Perform the following key operations from the statistical data list.
5(DIST)
2(t)
1(tpd)
Data is specified using parameter specification. The following shows the meaning of each
item.
x
.................................. data
df
................................. degrees of freedom (
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
# 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
6-7-7
Distribution
t
probability density from a specified
df +1
–
2
2
df + 1 x
1+
2 df
df
df
2
20050401
df
> 0)
when the [Stat Wind] setting is [Auto].
Xmin = –3.2, Xmax = 3.2, Xscale = 1,
Ymin = –0.1, Ymax = 0.45, Yscale = 0.1
x
value.