Casio fx-9750G PLUS User Manual Page 336

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308
kk
kk
k Student-t Distribution
You can use the following menu to select from the different types of Student-t
distribution.
•{tpd}/{tcd} ... {Student-t probability density}/{Student-t distribution probability}
calculation
uu
uu
uStudent-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
1 + x
2
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 (df >0)
Execute .......... executes a calculation or draws a graph
Example To calculate Student-t probability density for a specific
parameter value
For this example, we will calculate Student-t probability density
when x = 1 and degrees of freedom = 2.
bw
cw
1(CALC)
p(x) ................. Student-t probability density
18 - 8 Distribution
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