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[SPAM] [obm-l] DESAFIO DE MATEMÁTICA



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Suponha uma s=E9rie em progress=E3o geom=E9trica tal que:

a0 =3D a
a1 =3D a . r
a2 =3D a . r . r =3D ar^2
a3 =3D a . r . r. r =3D ar^3
....
a(n-1) =3D a . r^(n-1)

Qual a vari=E2ncia estat=EDstica amostral da s=E9rie acima, que tenha n ele=
mentos?

Fernando

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<div class=3D"gmail_quote">Suponha uma s=E9rie em progress=E3o geom=E9trica=
 tal que:<br><br>a0 =3D a<br>a1 =3D a . r<br>a2 =3D a . r . r =3D ar^2<br>a=
3 =3D a . r . r. r =3D ar^3<br>....<br>a(n-1) =3D a . r^(n-1)<br><br>Qual a=
 vari=E2ncia estat=EDstica amostral da s=E9rie acima, que tenha n elementos=
?<br>

<br>Fernando<br><br></div><br>

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