Casio FX-CG20 AU User Manual

6-71
k Distribution (Continuous)
Distribution Probability Density Cumulative Distribution
Normal
Distribution
πσ
2
p(x) =
1
e
–
2
2
σ
(x – μ)
2
μ
( > 0)
σ
p = p(x)dx
Upper
Lower
∫
Student- t
Distribution
p(x) =
×
Γ
Γ
× df
π
–
df+1
2
2
df
2
df + 1
df
x
2
1 +
χ
2
Distribution
p(x) =
×
(x  0)
Γ
1
2
df
df
2
× x
2
1
df
2
–1
x
2
–
× e
F Distribution
ndf
2
x
ddf
ndf
ndf
2
–1
ddf
ndf × x
1 +
ndf + ddf
2
p(x) =
–
Γ
2
ndf + ddf
Γ
2
ndf
× Γ
2
ddf
(x  0)
Distribution
Inverse Cumulative Distribution
Normal
Distribution
p = p(x)dx
Upper
–∞
∫
p = p(x)dx
Lower
∞
∫
p = p(x)dx
Upper
Lower
∫
tail = Left tail = Right tail = Central
Student-
t
Distribution
p = p(x)dx
Lower
∞
∫
χ
2
Distribution
F Distribution

Casio FX-CG20 AU Specifications

General

Model	FX-CG20 AU
Category	Calculator
Display Type	Color LCD
Resolution	384 x 216 pixels
Connectivity	USB
Graphing	Yes
Programming	Yes
3D Graphing	No
Spreadsheet	Yes
Equation Solver	Yes
Statistical Functions	Yes
Financial Functions	Yes
Compatibility	Windows, Mac
Dimensions	188.5 x 89 x 18.6 mm
Weight	230g
Power Supply	4 AAA batteries
Battery	AAA
Display Size	3.7 inches
Internal Memory	16MB