Phantsi nge ukungaqiniseki, okanye ukufumana indlela okuba

ubomi bethu nokuba siyathanda okanye hayi, zizele zonke iintlobo iingozi, ezimnandi akunjalo. Ngoko ke, ngamnye kuthi kuhle ukwazi ukufumana indlela amathuba lwesiganeko. Oku kuza kunceda ukwenza izigqibo ezilungileyo ngawo onke amaxesha, ezi zinto zinxulumene ukungaqiniseki. Umzekelo, olo lwazi luya kuba luncedo kakhulu xa ukhetha iindlela zotyalo-mali, nokuhlola amathuba kokuphumelela ilotto okanye impahla, nokumisela ngobunyani ekufezekiseni iinjongo zakho, njalo njalo. D., Kwaye njalo-njalo. N.

Ifomula e-worldwork theory lilonke

Enyanisweni, ukufundisisa isifundo Nongawuthabathiyo ixesha elininzi kakhulu. Ukuze uphendule lo mbuzo: "Indlela ukufumana amathuba necacileyo", kufuneka baqonde iingqiqo isitshixo kwaye ukhumbule imigaqo engundoqo apho ukuze basekele ukubala. Ngoko ke, ngokutsho manani, iziganeko wafunda ziboniswe yi A1, A2, ..., An. Ngamnye kubo zombini iziphumo ezithandekayo (m), kwaye inani elipheleleyo iziganeko nezakhiwo. Umzekelo, unomdla yokufumana indlela kungenzeka ukuba ubuso phezulu tyhubhu bekuya kuba inani lamanqaku thina. Kwaye ngoko - oku roll idayisi, m - ukulahlekelwa-2, 4 okanye 6 amanqaku (ezintathu ukhetho elilungileyo), kunye n - zonke iinketho ezintandathu. Olubalo fomula ngolu hlobo lulandelayo efanayo kakhulu:

P (A) = m / n.

Kulula ukuba ukubala ukuba kumzekelo wethu, amathuba efunekayo 1/3. Le nwebu umphumo kwicandelo, kokukhona amathuba oko isiganeko okunene kwenzeka, yaye vice versa. Nantsi ingcamango lilonke.

izibonelo

yonke lula kakhulu sisiphumo mnye. Apha ukuze ufumane njani amathuba, xa izinto zingahambi omnye emva komnye? Xiya xikombiso lexi sinendawo ikhadi (. Iziqwenga 36) iboniswa kwimephu, ngoko ayifihli kwakhona ibe kumgangatho, yaye emva ukukhwezela incothulwe elandelayo. Indlela ukufumana amathuba ukuba ubuncinane kwimeko mnye, yenyuselwa ngaphandle ukumkanikazi amalele? Lo mthetho: Ukuba siqwalasela isiganeko enzima, nabanako ukwahlulelana zibe iziganeko eziliqela ezilula engahambelaniyo, ngoko unga kuqala ukubala iziphumo ngamnye kubo, wamise abe ndawonye. Kwimeko yethu, bekuya khangela ngolu hlobo: ^_1/36 + ^_1/36 = ^_1/18. Kodwa kuthekani xa eziliqela iziganeko ezizimeleyo kwenzeka ngexesha elifanayo? Emva koko phinda isiphumo! Umzekelo, amathuba ukuba ngeli oluvunjululweyo, ngokuba alunakuzola eziinkozo ezimbini ewa imisila ezimbini iya kulingana: ½ * ½ = 0.25.

Ngoku thatha umzekelo ezimbaxa ngakumbi. Masithi senza ukuba babhukishe lotto, apho alishumi amatikiti mathathu uwina. Kufuneka:

1. Ilinganisa ukuba nokwenzeka kokuba zombini ziya yokuphumelela.
2. Ubuncinane omnye wabo uya kukuzisela ibhaso.
3. Zombini ziya baphulukene.

Ngenxa yoko, sicinga icala lokuqala. It lungahlulwa-hlulwa ibe iziganeko ezimbini: itikiti wokuqala uya kuba noyolo wena, nowesibini liya kuvuya. sesikuthathela ingqalelo ukuba iziganeko baxhomekeke, kuba emva kokuba ngamnye etsala inani elipheleleyo lamatyala kunciphisa. sifumana:

^{_{* 9/29 = 10/30}} 0.1034 .

Kwimeko yokugqibela, kuya kufuneka ukuba ukujonga amathuba yokuphulukana ithikithi sicinga ukuba kusenokuba ibhanki wokuqala nowesibini: ^{_{* 20/29 + 10/30}} 20/29 * 10/30 = 0.4598 .

Ekugqibeleni, ityala wesithathu, xa ilotto kudlalwa ngaphandle nokuba incwadi enye ukufumana musa ukufumana: ^_20/30 * ^_19/29 = 0.4368.