( ;π,φ, η) =∑
=1
π ( ;φ , η)
π
φ
η
=∏
( |π,φ, η)
=∑
( |π,φ, η)
( ;µ,σ2) = N ( ;µ,σ2)
µ σ2
µ̂ =∑
=1 /
σ̂2 =∑
=1( − µ̂)2/
µ1, µ2, · · · , µσ21 ,σ
22 , · · · ,σ2
+ 1= 2
( [ ])
( |µ,σ) = 1σ√2π
[−12
(− µσ
)2]
( | ,π, µ,σ) =∑
=1
π ( |µ ,σ )
=∏
( |π,π, µ,σ)
=∑
( |π, µ,σ)
0 ≤ π ≤ 1∑
=1 π = 1
π
0 ≤ π ≤ 1∑
=1 π = 1
∈ R −1 = 1, · · · , − 1π = 1
1+ −(1−
∑ −1=1 π )
π = 1−∑ −1
=1 π
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