Labantu statistical

Amanani - isayensi ufunda nesenzeko mass ezenzeka ekuhlaleni ngokwemigaqo ezisemgangathweni kunye nobungakanani. Oku nje nenkcazelo kwamkelwa. Kukho uluvo phezu kwalo, njengokuba inzululwazi ukuvela iindlela manani ukuba uphando olwenziwe kwiindawo ezahlukeneyo.

Ezona mpawu zibalulekileyo kokuhlambeleyo, iimpawu kunye yesalamane nokuhlalisana izinto ezikhoyo cala ezibonisa izinto ezithile okanye iindidi. Ngoncedo lwabo, le inzululwazi ufunda into yakhe. Enye yezi ndidi kukho aggregate manani. Eli linani elikhulu ngezenzeko ezahlukahlukeneyo ezikhoyo isithuba kunye nexesha. Bonke bephela bomzi yaye imiqondiso, uzisondeze kufutshane okanye ezahlukeneyo.

labantu Statistical luphawulwa mihlaba ilandelayo:

1. Indecomposability. Xa kuvela okanye anyamalale ezinye iimpawu kubemi zamanani, noseko lwalo ezikumgangatho ophezulu lutshatyalaliswe. Umzekelo, iimpawu zoluntu abafundi engaphenduli ukutshintsha into yokuba nyaka ngamnye nezikhundla zayo abangena freshmen kwaye abanezidanga ahambe.
2. Ngendlela efanayo. labantu Statistical kusoloko ubuncinane enye into efanayo ukuba zonke izinto zawo. Kwangaxeshanye, lo msebenzi osemqoka akufani kubo. Lo msebenzi osemqoka unokuba amaxabiso awahlukeneyo kweeyunithi ezahlukeneyo. Indlela eya apho abemi zamanani na bomzi, elasekwa ngexesha uphando. Kwaye oko kuxhomekeke propati, ubukhulu becala iinjongo kunye neenjongo ngazo eliphethwe ngayo.
3. Ukwahlukana. Lo mhlaba ibaluleke ngaphezu ezimbini ezidlulileyo. Oku kubonakala ngolu hlobo lulandelayo: ngethuba lenguqu ukusuka element omnye komnye kubemi manani etshintsha amaxabiso ubuninzi feature. Kunokuba efanayo kuwo onke amacandelo. Kulo mzekelo, ukufumana intsingiselo yamazwi yabantu statistical, awukwazi ukufunda kuyo ngokupheleleyo, yaye ukuqwalasela omnye kuphela into wabavoti woluntu. Livela yokwahluka kuchaphazela lonke uluhlu kwiimbangi kunye nemiqathango. zophando lwabo, ecacisa ingqeqesho kwezoqoqosho inxaxheba. A manani ikuhluza nangokobungakanani kuphela kuchaphazela indlela nganye i ukwahluka yoko phawu ethile. Ulwazi malunga oku kuyanceda ukwenza izigqibo zolawulo ekunene.

aggregate Statistical bohlulwa babe ngamaqela ezininzi:

1. Abo ukudala ubomi. Bona sele yakha umanyano, akukho nto phantsi kophando okanye hayi. Umzekelo, oku iseti kwamashishini industrial esixekweni, wokuhlangana abasebenzi babo. Bona ngokwenene khona, lingalinganiswa.
2. Amaqela enziwa ngokukodwa ukuba baqhube uphando. Oku, umzekelo, ingqokelela manani abafundi ezithile ngamaxesha athile.
3. isethi ezingenzeka. Le isethi stochastic (ezifana imizimba yasezulwini ezikhoyo kumnyele). Oko kukuthi, ukuba ibimele ukuba acinge.

Kwabantu manani eyeyomnye na amaqela amathathu inemisebenzi isici. Bangahlela ngenxa yezizathu ezininzi.

Umzekelo, ngokuxhomekeke kuhlobo iimpawu athi zezi:

1. Achazayo (attribute). Bona kubonakaliswa ngokusebenzisa amagama (umzekelo, imfundo, ngokobuhlanga, ngokwesini). Ezi mpawu ukuvumela ukuba bashwankathele zingaphi iiyunithi kufuneka na ixabiso.
2. Belinani. kwazo - lwamanani (umz, ubudala, ubude kwenkonzo, isixa ingeniso okanye ilahleko, njalo njalo). Ezi mpawu kwakhona ukuvumela ukuba zishwankathela inani labo Izakhi abe ixabiso elithile, kwaye ixabiso avareji okanye lilonke ngokwahlukeneyo lokubolekwa zabo.