Casio FX-9750G PLUS User's Manual & Technical Reference page 336

18 - 8
Distribution
k k k k k Student-t Distribution
You can use the following menu to select from the different types of Student-
distribution.
u u u u u Student-t probability density
Student-
value.
Perform the following key operations from the statistical data list.
Data is specified using parameter specification. The following shows the meaning
of each item.
308
• {tpd}/{tcd} ... {Student-
calculation
t
probability density calculates
df + 1
Γ
2
f (x) =
df
Γ
2
5(DIST)
t
)
2(
1(tpd)
x
..................... data
df
.................... degrees of freedom (
Execute .......... executes a calculation or draws a graph
Example To calculate Student-
parameter value
For this example, we will calculate Student-
x
when
bw
cw
1(CALC)
p x
( ) ................. Student-
t
probability density}/{Student-
t
probability density from a specified
df+1
–
1 + x 2
2
df
π
df
df
t
probability density for a specific
= 1 and degrees of freedom = 2.
t
probability density
t
distribution probability}
>0)
t
probability density
t
x