User Manual

8-43
• Student- t Distribution
tPD(: Returns the Student- t probability density ( p value) for the specified data.
Syntax: tPD(
x , df [)]
• A single value or a list can be specified for
x . Calculation result p is assigned to variables p
and Ans (ListAns when x is a list).
tCD(: Returns the Student-
t cumulative distribution ( p value) for the specified data.
Syntax: tCD(Lower,Upper,
df [)]
• Single values or lists can be specified for Lower and Upper. Calculation results
p , tLow,
and tUp are assigned respectively to variables p , tLow, and tUp. Calculation result p also is
assigned to Ans (ListAns when Lower and Upper are lists).
InvTCD(: Returns the inverse Student-
t cumulative distribution (Lower value) for the specified
p value.
Syntax: InvTCD(
p , df [)]
• A single value or a list can be specified for
p . The Lower value is assigned to the x Inv and
Ans variables (ListAns when p is a list).
• 
2
Distribution
ChiPD(: Returns the 
2
probability density ( p value) for the specified data.
Syntax: ChiPD(
x , df [)]
• A single value or a list can be specified for
x . Calculation result p is assigned to variables p
and Ans (ListAns when x is a list).
ChiCD(: Returns the

2
cumulative distribution ( p value) for the specified data.
Syntax: ChiCD(Lower,Upper,
df [)]
• Single values or lists can be specified for Lower and Upper. Calculation result
p is assigned
to variables
p and Ans (ListAns when Lower and Upper are lists).
InvChiCD(: Returns the inverse

2
cumulative distribution (Lower value) for the specified p
value.
Syntax: InvChiCD(
p , df [)]
• A single value or a list can be specified for
p . The Lower value is assigned to the x Inv and
Ans variables (ListAns when
p is a list).