Casio ClassPad 300 PLUS User Manual
Page 391
20050501
7-11-4
Distribution
Calculation Result Output
x
: inverse cumulative normal distribution
(Upper integration interval boundary when Tail:Left)
(Lower integration interval boundary when Tail:Right)
(Upper and lower integration interval boundaries when Tail:Central)
k
t
Distribution
Student-
t
Probability Density
Command:
TPD
Ⅺ
Description: This command 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+
Command Syntax
x
value,
df
value
Definition of Terms
x
: data value
df
: degrees of freedom (
df
> 0)
Input Example:
TPD 1.5,6
Calculation Result Output
p
: Student-
t
probability density
Student-
t
Distribution Probability
Command:
TCD
Ⅺ
Description: This command calculates the probability of the Student-
t
distribution data
falling between
a
and
b
.
p
=
Γ
Γ
.
df
π
2
df
2
df + 1
–
df
+1
2
df
x
2
1+
dx
a
b
a
:
lower boundary (Lower)
b
:
upper boundary (Upper)
Command Syntax
Lower value, Upper value,
df
value