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Slika - Shrani.si

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A. Juriˇ<strong>si</strong>ć in V. Batagelj: Verjetnostni račun in statistika 644<br />

✬<br />

✫<br />

Y ′ = 2 − 21<br />

148<br />

(X − 11) = 3, 54 − 0, 14X<br />

y ′ (18) = 3, 54 − 0, 14 · 18 = 1, 02<br />

ρ = 21<br />

= −0, 70<br />

146 · 6<br />

σ 2 e = 6<br />

<br />

1 − (−0, 70) 2 = 0, 51 = 0, 71<br />

6<br />

R = (0, 70) 2 = 0, 49<br />

Če oseba gleda 18 ur na teden televizijo, lahko pričakujemo, da bo 1-krat<br />

na mesec ˇsla v kino, pri čemer je standardna napaka 0, 7.<br />

49% variance obiska kino predstav lahko pojasnimo z gledanjem televizije.<br />

Univerza v Ljubljani ▲<br />

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● ❙ ▲<br />

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☛ ✖<br />

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✩<br />

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