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¿Que significa que una distribución tiene<br />

media infinita?<br />

• Si el número <strong>de</strong> observaciones es finito, la media se pue<strong>de</strong><br />

calcular.<br />

• A medida que se aña<strong>de</strong>n mas observaciones, aumenta la<br />

probabilidad <strong>de</strong> tomar un valor <strong>de</strong> la cola. El promedio tien<strong>de</strong> a<br />

crecer, no converge.<br />

Pareto (α = 1)<br />

f( x)<br />

<br />

<br />

k<br />

1<br />

<br />

E[ x] <br />

x dx ln<br />

x<br />

1<br />

2<br />

1<br />

x<br />

x<br />

1

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