Tasleḍt n tigezmin

Tarrayt

Bḍut aḍebsi ɣef tigezminaḍebsiTagzemtAḥric n texxamin yemmeḍfaren ɣef uḍebsi, mačči d tagrumma ɣef tfelwit.Ɣer akk → yemlalen, s umata sḍis n tgezmin n sḍis neɣ sa n texxaminibenkanTaxxamtYiwet seg 37 n texxamin s wuṭṭunen ɣef uqerru yettezzin. Daɣen: slot, cup.Ɣer akk →, s tuddsa n uḍebsi mačči s win n tfelwit n rrhunibenkanTafelwit n rrhunAẓeṭṭa n rrhun yettwarun ɣef ṭṭabla. Daɣen: ṭṭabla, tajellabt, aceṭṭiḍ.Ɣer akk →. I yal tagzemt n k n texxamin, tikkal yettwaṛǧan d n·k/37 u abeɛɛed alugan (SD)tusnaktAbeɛɛed aluganAẓar amkuẓ n tavaryans; ameccaq n umata gar ugmuḍ d wazal yettwaṛǧan.Ɣer akk → d √(n·p·(1−p)) s p = k/37. Ḥesbet z = (ayen yettwalan − ayen yettwaṛǧan)/σ i yal tagzemt. Tagzemt sennig n +2 tesɛa azal n tmuɣli tis snat; sennig n +3, deg snat n tegrummiwin timanayin, tesɛa lmeɛna.

Aḍebsi n rulit

Acuɣer tigezmin

Ikayaden n yiwet n texxamt sɛan 37 n tegnatin ad d-fken alɣu n lɣelṭ, u tazmilt d tafessast deg yal yiwen. Ikayaden n tigezmin sɛan sḍis n tegnatin u tazmilt tettemyernay seg texxamt ɣer tin yemlalen yid-s. Mṣadan daɣen d tfizikt: aḍebsi yeknan yettaǧǧa takurtibenkanTakurtTakurt tamecṭuḥt i yettwaḍeqqren deg ubrid mgal aqerru yettezzin. Tikurin n tura d ivorine neɣ d Teflon, 18–21 mm.Ɣer akk → ad teǧǧ abrid ugar seg tama yuɛlayen, ayen yesmenyafen tagzemt; lḥiḍ n texxamtibenkanLḥiḍ n taxxamtLḥiḍ n wuzzal gar snat n texxamin ɣef uḍebsi.Ɣer akk → yerxan neɣ yeknan ibeddel aneggez n texxamin i t-yezzin; abrid n tkurtibenkanAbrid n tkurtAsaru deg tama n uḍebsi anda tettazzal tkurt send ad tesqerdec, ad teɣli. Daɣen: abrid afellay.Ɣer akk → yeqdmen yesnulfuy-d tamnaḍt n uɣelli i yesmenyafen tixxamin yellan ddaw-s deg uɣelli, ayen yettemfasayen ɣef tegzemt tehrawant s urured n uqerru yettezzinibenkanAqerru yettezzin (rotor)Aḥric n uḍebsi yettezzin i yeṭṭfen tixxamin.Ɣer akk → yettbeddilen s ttawil. Ula d yiwen seg leɛyub-a ur yesmenyaf yiwet n texxamt iman-is.

Arured n uqerru yettezzinTafizikt n uḍebsi n rulit

Tigezmin yettembiwilen

Tilisa yettwasbedden zemrent ad bḍunt tagzemt yeḥman ɣef snat n tgezmin u ad tt-ssefsin. Tarrayt nniḍen tessembiwil asfaylu n k n texxamin ɣef uḍebsi, tessiḍin z deg yal yiwet seg 37 n yimukan, u tettnadi ɣef wazal ameqqran. Azal ameqqran n 37 n yizalen z yeqqnen ma yella uḍebsi imsawi s umata d azal n 2,2 ɣer 2,5, ihi azal ameqqran n usfaylu yettembiwilen ddaw n 2,5 d ahuzzu n tegnit, u talast n lwelha tuli s wudem-nni, azal n 3,5.

Seg tegzemt ɣer rrehn

Ma tettwasentem tegzemt teḥma, rrehn n tbiɛa d lǧiranrrehnLǧiranYiwen wuṭṭun d snat n texxamin ɣef yal tama-s ɣef uḍebsi, semmus n yijiṭunen ɣef yiwen wuṭṭun.Ɣer akk → ɣef tlemmast-is neɣ tagrumma n rrhun ɣef yiwen wuṭṭunrrehnYiwen wuṭṭunYiwen wuṭṭun kan, ixelleṣ 35:1.Ɣer akk → yettwasersen s ufus ɣef-s. Akayad n rrbeḥ d afmiḍi n uɣelli n tegzemt mgal lexlaṣidrimenLexlaṣAyen i d-yettak rrehn i yerbḥen, yettwanna «X ɣef 1» nnig rrehn i d-yettuɣalen.Ɣer akk →: tagzemt n sḍis n texxamin ilaq ad teɣli ugar n 6/36 = 16,7% n tikkal (yettwalan, yettwaɛawden) akken sḍis n yijiṭunenidrimenAjiṭunTamatart i d-yemmalen azal yettwasbedden, yettwasersen ɣef tfelwit akken ad yili rrehn. Daɣen: check.Ɣer akk → ɣef yiwen wuṭṭun ad wwḍen ɣer ulac rrbeḥ ulac lexsara, mgal 16,2% imsawi. Amgired d azgen n tenqiḍt n ufmiḍi, d ayen i yettaǧǧan asentem-is yesra timerwin n yigiman n tuzzyiwin.

Tiddi n tegrumma

Amesleḍ

Amesleḍ n umyal n uḍebsi deg usmel-a yeqbal tabdart n tuzzyiwin, yessiḍin chi-square, u yesskan aḍebsi am tkarḍa n tezɣelt s yizalen z n tigezmin, s ubeṭṭu n ufella d amezwer. Yessexlaḍ daɣen isefka-nwen akken ad d-yesken amek ttbanent tidaddanin-nni ma yella uḍebsi imsawi, d ddwa yezrben akk mgal tamuɣli n tmudmin.

Akayad χ² (chi-square)

Tasemselt

Isteqsiyen