11.08.2013 Views

Slika - Shrani.si

Slika - Shrani.si

Slika - Shrani.si

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

A. Juriˇ<strong>si</strong>ć in V. Batagelj: Verjetnostni račun in statistika 305<br />

✬<br />

Primer: Vzemimo populacijo z N = 4 enotami, ki imajo naslednje<br />

vrednosti spremenljivke X:<br />

✫<br />

0, 1, 2, 3<br />

Grafično <strong>si</strong> lahko porazdelitev spremenljivke X predstavimo s histogramom:<br />

in izračunamo populacijsko<br />

aritmetično sredino in varianco:<br />

µ = 1<br />

N<br />

σ 2 = 1<br />

N<br />

Univerza v Ljubljani ▲<br />

❙ ▲<br />

▲<br />

N<br />

i=1<br />

N<br />

i=1<br />

xi = 3<br />

2 ,<br />

(xi − µ) 2 = 5<br />

4 .<br />

● ❙ ▲<br />

▲<br />

☛ ✖<br />

▲<br />

✩<br />

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!