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processo MA(1)<br />

yt = + "t + "t 1<br />

1 = 1<br />

0<br />

e k = k<br />

0<br />

2<br />

=<br />

(1 + 2 ) 2 = 1 + 2<br />

0<br />

=<br />

(1 + 2 = 0<br />

) 2

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