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CASIO
6-70
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 м 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 м 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