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Slika - Shrani.si

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A. Juriˇ<strong>si</strong>ć in V. Batagelj: Verjetnostni račun in statistika 632<br />

✬<br />

Potem sta regre<strong>si</strong>jski premici<br />

oziroma<br />

✫<br />

Y = µY +<br />

X = µX +<br />

N<br />

N<br />

i=1 (xi − µX)(yi − µY )<br />

N<br />

(xi − µX) 2<br />

(X − µX),<br />

i=1<br />

i=1 (xi − µX)(yi − µY )<br />

N<br />

(yi − µY ) 2<br />

(Y − µY ),<br />

i=1<br />

Y = 3 + 48<br />

(X − 8) = −0, 68 + 0, 46X,<br />

104<br />

X = 8 + 48<br />

(Y − 3) = −2, 46 + 1, 85X.<br />

26<br />

Univerza v Ljubljani ▲<br />

❙ ▲<br />

▲<br />

● ❙ ▲<br />

▲<br />

☛ ✖<br />

▲<br />

✩<br />

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