Ilimi na kididdiga

Ilimin kididdiga shine ikon fahimta da tunani tare da kididdiga da bayanai. Kwarewar fahimta da tunani tare da bayanai, ko muhawara da ke amfani da bayanai, sun zama dole ga 'yan ƙasa su fahimci kayan da aka gabatar a cikin wallafe-wallafen kamar jaridu, talabijin, da Intanet. Koyaya, masana kimiyya suna buƙatar haɓaka ƙididdigar ƙididdiga don su iya samar da bincike mai zurfi da sakewa kuma su cinye shi. Lamba wani bangare ne na kasancewa mai ƙididdigar ƙididdiga kuma a wasu samfuran ƙididdigat, ko ga wasu al'ummomi (misali, ɗalibai a makarantar sakandare ta hanyar aji na 12 / ƙarshen makarantar sakandare), ƙwarewa ce da ake buƙata. Kasancewa da ƙididdigar ƙididdiga wani lokaci ana ɗaukarsa don haɗawa da ƙwarewar kimanta kayan ƙididdiga da ƙididdiga game da dacewa da hanyoyin ƙididdigari ga dukkan fannoni na rayuwa gabaɗayaDodge, Y. (2003) The Oxford Dictionary of Statistical Terms, OUP.   Wallman was president of the American Statistical Association and Chief of Statistical Policy, United States Office of Management and Budget. ko kimantawa, ƙira, da / ko samar da aikin kimiyya.

 Inganta ilimin kididdiga 
Kowace rana mutane suna cike da bayanai na kididdiga daga tallace-tallace ("4 daga cikin likitocin hakora 5 suna ba da shawarar"), rahotanni na labarai ("bincike na ra'ayi yana nuna wanda ke jagorantar da maki huɗu"), har ma da tattaunawa ta gaba ɗaya ("rabi lokacin ban san abin da kuke magana game da shi ba"). Masana da masu ba da shawara galibi suna amfani da da'awar lambobi don ƙarfafa hujjojin su, kuma ilimin lissafi ƙwarewa ce mai mahimmanci don taimakawa mutum ya yanke shawarar abin da masana ke nufi da kuma wane mai ba da shawara ya yi imani. Wannan yana da mahimmanci saboda ana iya yin kididdiga don samar da kuskuren bayanai waɗanda zasu iya zama masu inganci. Manufar masu ba da gudummawa ga ilimin lissafi shine inganta fahimtar jama'a game da lambobi da adadi.

Shawarwarin kiwon lafiya galibi ana bayyana su a matsayin matsalolin yanke shawara na kididdiga amma likitoci kaɗan ko marasa lafiya suna da kayan aiki don shiga cikin waɗannan bayanan.

Sakamakon Binciken ra'ayi sau da yawa kungiyoyin labarai suna ambaton su, amma ingancin irin waɗannan kuri'un ya bambanta sosai. Wasu fahimtar dabarun ƙididdigar samfurori ya zama dole don samun damar fassara sakamakon zabe daidai. Girman samfurin na iya zama karami don samun ma'ana, kuma samfurori na iya zama masu son kai. Kalmomin tambayar zabe na iya gabatar da son kai, kuma saboda haka ana iya amfani da shi da gangan don samar da sakamako mai son kai. Kyakkyawan kuri'u suna amfani da dabarun da ba su da son kai, tare da lokaci da ƙoƙari da yawa da ake kashewa wajen tsara tambayoyin da dabarun zabe. Ilimin kididdiga ya zama dole don fahimtar abin da ke sa kuri'a ta zama abin dogaro da kuma auna darajar sakamakon zabe da kuma yanke shawara.

 Misalai na ilimin lissafi 
Gwaje-gwaje a cikin kimiyya, samfuran kasuwanci da rahotanni, amfani da kididdiga. Mutanen da ke cikin waɗannan fannoni galibi sun yi nazarin ma'anar ƙididdigar ƙididdiga, kamar matsakaicin da daidaitattun daidaito. Yawancin kwalejoji da jami'o'i suna buƙatar gabatarwar hanya a cikin kididdiga a matsayin wani ɓangare na shirin ƙwararru..

Bayanan bayanai na iya ba da gudummawa ga ko dai fahimta ko rashin fahimta game da bayanan ko kuma gardamar da ake yi da bayanan.Heiberger, R.M., Holland, B. (2004) Statistical Analysis and Data Display. Springer. 

Bincike ya nuna cewa ƙididdigar ɗan adam game da yiwuwar yana da tasiri sosai ta mahallin da kalmomi. Tunanin kididdiga na iya zama da wahala a bunkasa da kuma inganta shi, wanda ya haifar da lakafta irin wannan tunanin kamar yadda ba na fahimta ba. Misali, mutane yawanci suna watsi da yiwuwar shiga cikin hadarin mota saboda hulɗarsu ta yau da kullun tare da motoci yana ba da ra'ayi cewa sun fi aminci fiye da yadda suke. Hakazalika, suna yawan kimanta yiwuwar shark ya kai musu hari saboda kafofin watsa labarai ko wasu tasiri.
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