Art of Stat: Concepts

Hlola i-Central Limit Theorem, funda mayelana ne-coefficient yokuhlobanisa nokuhlehla komugqa, futhi ubone ngeso lengqondo amathuba okufakwa kwezikhawu zokuzethemba noma Amaphutha Ohlobo I & II ekuhlolweni kwe-hypothesis.

Yakha ukuqonda ngokubona le miqondo ebalulekile isinyathelo nesinyathelo. Okwabafundi nothisha bezibalo.

Uhlelo lokusebenza lwe-Art of Stat: Concepts lunikeza ukufinyelela kumamojula alandelayo:

- I-Central Limit Theorem yezindlela
- I-Central Limit Theorem ye-Proportions
- Hlola Ukuhlobana
- Hlola Ukwehla Komugqa
- Hlola Ukusabalala
- Amaphutha namandla

I-CLT: Khetha ekusabalaliseni kwenani labantu bangempela abambalwa (kwesokunxele nakwesokudla-okutshekile noma ukulinganisa ngokufanele) bese ulingisa ukuthatha isampula kubantu.

Bona ngeso lengqondo ukuthi ukusabalalisa kwesampula kwakha kanjani, isinyathelo ngesinyathelo. Hlola umthelela ekusabalaliseni amasampula njengoba ukhulisa usayizi wesampula. Imbondela ukusatshalaliswa okuvamile.

Qhathanisa ukusatshalaliswa kwesampula kwencazelo ekusabalaleni kwabantu, kokubili ngokubonakalayo nangokuya ngezibalo ezibalulekile.

Hlola Ukuhlehla/Ukuhlehla Komugqa: Dala (futhi ususe) amaphuzu ku-scatterplot ngokuqopha isikrini. Bonisa umugqa wokuhlehla noma izinsalela. Lingisa ama-scatterplots futhi uqagele i-coefficient yokuhlobanisa.

Ukufakwa kanye Namaphutha: Hlola ukuthi u-95% wekhava yesikhawu sokuzithemba wenani labantu usho ukuthini noma isilinganiso.

Bona iphutha Lohlobo I kanye Nohlobo II futhi uhlole ukuthi zincike kanjani kusayizi wesampula kanye nenani lepharamitha langempela. Thola futhi ubone ngeso lengqondo amandla okuhlolwa kwe-hypothesis.