UThomas M. Cover wabuza lo mbuzo ulandelayo omangalisayo ngo-1987 ku "Vula Iingxaki Kwezonxibelelwano Nokubala": Umdlali \(X\) ubhala amanani amabini ahlukeneyo kunye nalawo akhethwe ngokungakhethiyo \(A\) kunye \(B\) kwimibini emibini eyahlukeneyo Ingcezu yephepha wayibeka phantsi etafileni. Umdlali \(Y\) ngoku ukhetha ngokungacwangciswanga elinye lala maqhekeza ephepheni, alibone inani kwaye ngoku kufuneka athathe isigqibo sokuba ingaba eli nani lincinci okanye likhulu kunelinye inani elifihliweyo etafileni.
Umdlali \(Y\) akanokujika ikhadi elijonge ezantsi. Kuqala ukuvumela ukuba uthathe isigqibo sengqekembe kwaye unesicwangciso esiphumeleleyo sepesenti \(50\%\) ifunyenwe. Ngaba sikhona esinye isicwangciso esinokubakho okuphezulu?
Phambi kokuba umdlali \(Y\) akhethe ngokungakhethiyo kula maphepha mabini, umisela inani lendalo elingenakuphikiswa \(C\) . Emva koko ujika elinye kula maphepha mabini ngokungacwangciswanga. Ngoku uthatha isigqibo ngolu hlobo lulandelayo: Ukuba inombolo eguqulweyo \( \leq C \) , ukhetha inani elikwelinye uluhlu njengelona likhulu; ukuba inani eliguqulweyo ngu \( > C\) , ukhetha inani elisandula ukuguqulwa njengowona mkhulu. Ngelishwa, ithuba lokuphumelela ngoku \( > 50\% \) .
Siqala ukuseta ukutyunjwa kwamanani amabini ku \(A < B\) . Ke ngoku elinye lamatyala amathathu alandelayo lenzeka kwangoko emva kokukhethwa kwe \(C\):
- Ityala lokuqala: \( C \leq A < B \) : Ke amathuba okuphumelela ngu \(50\%\) , kuba akukho lwazi malunga \(A\) kunye \(B\) .
- Ityala lesi-2: \( A < B \leq C \) : Ke amathuba okuphumelela ngu \(50\%\) , kuba akukho lwazi malunga \(A\) kunye \(B\) .
- Ityala lesithathu: \( A < C < B \) : Ke amathuba okuphumelela ngu \(100\%\) , kuba ukuba \( B \) ijikwe kuqala, umntu uhlala no \( B \) kwaye ukuba \(A\) ijikwe kuqala, utshintshela ku \(B\) , ke uhlala ukhetha inani elikhulu.
Okumangalisayo kukuba, esi sicwangciso sikwasetyenziswa kubomi bemihla ngemihla: Umzekelo, ukuba kuya kufuneka uthathe isigqibo kwangoko okanye ngokuchasene nokuthenga imveliso ngaphandle kokufumana isithembiso sokuthelekisa, uzibekela umda wemali kwangaphambili. Ukuba lo mda wexabiso lokwenyani ufezekisiwe, kuthengiwe kwenziwa-kungenjalo akunjalo.