Chapter 2: Main Application
84
• “tail setting” displays the probability value tail specification, and Left, Right, or Center can be specified. Enter
the following values or letters to specify:
Left:
−1, “L”, or “l”
Center: 0, “C”, or “c”
Right: 1, “R”, or “r”
When input is skipped, “Left” is used.
• When one argument is omitted (resulting in three arguments), Tail=Left.
• When two arguments are omitted (resulting in two arguments), Tail=Left,
μ
=0.
• When three arguments are omitted (resulting in one argument), Tail=Left,
σ
=1,
μ
=0.
• When “tail setting” is Center, the lower bound value is returned.
Calculation Result Output:
x
1
InvN,
x
2
InvN
Example: To determine the upper bound value when tail setting = Left, area
value = 0.7,
σ
= 2,
μ
= 35
u
tPDf
[Action][Distribution/Inv.Dist][Continuous][tPDf]
Function: Returns the Student’s
t
probability density for a specified value.
Syntax: tPDf(
x
,
df
[ ) ]
Calculation Result Output:
prob
Example: To determine the Student’s
t
probability density when
x
= 2,
df
= 5
u
tCDf
[Action][Distribution/Inv.Dist][Continuous][tCDf]
Function: Returns the cumulative probability of a Student’s
t
distribution between a lower bound and an upper
bound.
Syntax: tCDf(lower value, upper value,
df
[ ) ]
Calculation Result Output:
prob
,
t
Low,
t
Up
Example: To determine the Student’s
t
distribution probability when
lower value = 1.5, upper value =
∞
,
df
= 18
u
invTCDf
[Action][Distribution/Inv.Dist][Inverse][invTCDf]
Function: Returns the lower bound value of a Student’s
t
cumulative distribution probability for specified
values.
Syntax: invTCDf(
prob
,
df
[ ) ]
Calculation Result Output:
x
Inv
Example: To determine the lower bound value when
prob
= 0.0754752,
df
= 18
u
chiPDf
[Action][Distribution/Inv.Dist][Continuous][chiPDf]
Function: Returns the
χ
2
probability density for specified values.
Syntax: chiPDf(
x
,
df
[ ) ]
Calculation Result Output:
prob
Example: To determine the
χ
2
probability density when
x
= 2,
df
= 4
