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Stokastiske variable

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Fordelingen for X<br />

Lad B ⊆ R være et interval, eller en anden hændelse i R, sådan at<br />

urbilledet af B<br />

X−1B e ∈ S : Xe ∈ B<br />

tilhører H.<br />

Forsimplet notation:<br />

Vi skriver normalt PX ∈ B istedetforPX−1B. Eksempel Kast med to terninger<br />

Xe : 2 3 4 5 6 7 8 9 10 11 12<br />

Antal udfald: 1 2 3 4 5 6 5 4 3 2 1<br />

PX ∈ 1, 3 <br />

1 2<br />

36<br />

3 36 1 12

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