Casio – Casio FX-CG10 User Manual
Page 322
CASIO
8-38
k Using Distribution Graphs in a Program
Special commands are used to draw distribution graphs in a program.
• To draw a normal cumulative distribution graph
DrawDistNorm
σ,
ƫ
]
Population mean
*
1
Population standard deviation
*
1
Data upper limit
Data lower limit
*
1
This can be omitted. Omitting these items performs the calculation using
Ʊ
= 1 and
ƫ
= 0.
• Executing DrawDistNorm performs the above calculation
in accordance with the specified conditions and draws
the graph. At this time the ZLow <
x
< ZUp region on the
graph is filled in.
• At the same time, the
p
, ZLow, and ZUp calculation result values are assigned respectively
to variables
p
, ZLow, and ZUp, and
p
is assigned to Ans.
• To draw a Student- t cumulative distribution graph
DrawDistT
df
>
Degree of freedom
Data upper limit
Data lower limit
• Executing DrawDistT performs the above calculation in accordance with the specified
conditions and draws the graph. At this time the Lower <
x
< Upper region on the graph is
filled in.
• At the same time, the
p
calculation result value and the Lower and Upper input values are
assigned respectively to variables
p
, tLow, and tUp, and
p
is assigned to Ans.
πσ
2
p
=
dx
1
e
–
2
2
σ
(x –
μ
)
2
μ
Upper
Lower
∫
ZUp =
σ
Upper
–
μ
ZLow =
σ
Lower
–
μ
πσ
2
p
=
dx
1
e
–
2
2
σ
(x –
μ
)
2
μ
Upper
Lower
∫
ZUp =
σ
Upper
–
μ
ZLow =
σ
Lower
–
μ
tLow = Lower
tUp = Upper
Γ
2
df
+ 1
df
x
2
1 +
df
+ 1
2
p
=
×
–
Γ
2
df
dx
df
×
π
Upper
Lower
∫
tLow = Lower
tUp = Upper
Γ
2
df
+ 1
df
x
2
1 +
df
+ 1
2
p
=
×
–
Γ
2
df
dx
df
×
π
Upper
Lower
∫