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Slika - Shrani.si

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A. Juriˇ<strong>si</strong>ć in V. Batagelj: Verjetnostni račun in statistika 229<br />

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✫<br />

. . . Lastnosti matematičnega upanja<br />

Torej je matematično upanje E linearen funkcional, tj.<br />

E(aX + bY ) = aEX + bEY.<br />

Z indukcijo posploˇ<strong>si</strong>mo to na<br />

poljubno končno ˇstevilo členov<br />

E(a1X1 + a2X2 + · · · + anXn)<br />

= a1EX1 + a2EX2 + · · · + anEXn<br />

Univerza v Ljubljani ▲<br />

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☛ ✖<br />

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