Lissafi da caca, na John Haigh

Lissafi da, musamman, ƙididdiga, sun kasance biyu daga cikin batutuwan da suka haifar da ciwon kai mafi girma a cikin ɗalibai kowane lokaci, amma sune mahimman fannoni don yanke shawara. Dan adam ba jinsin bane musamman baiwa don nazarin manyan bayanai na bayanai, don haka sarrafa wadannan daga hankali yakan kai mu ga yanke hukunci mara kyau cikin dogon lokaci. Akwai littattafan bayanai masu yawa da suka shafi batun, amma a yau muna so mu haskaka, don sauƙaƙe da ƙudurin sa, wataƙila aikin gargajiya na John hajiya, Lissafi da caca. Farawa da tambayoyi masu sauƙi game da yanayi da wasannin da kowa ya sani, za mu shigar da ƙa'idodin ƙa'idodin da ke jagorantar ingantattun dabaru daga hannun ɗaya daga cikin sanannun membobin Royal Statistical Society.

Menene dalilan da yasa dan wasan da ke ɗaukar katunan daga murabba'in lemu a kan jirgin yawanci shine mai lashe wasan? Shin muna da ƙarin zaɓuɓɓuka don samun kyauta a cikin tafkin ko a cikin caca? Ta hanya mai sauƙi, Haigh yana ba mu amsoshi ta amfani da ci gaban ilmin lissafi wanda a hankali ke ci gaba da rikitarwa, tare da madaidaicin tsarin koyo kuma ba tare da yin nishaɗi ba. Don haka, a cikin shafuka 393 ɗinmu za mu yi magana kan batutuwan da suka fara daga stochastics na gargajiya zuwa ka'idar wasa.

Yunƙurin daga wasan fuska da fuska zuwa sabis na kan layi juyin juya hali ne a cikin ilimin lissafin da aka yi amfani da shi don wasannin sa'a, kuma waɗanda ke neman bayanai don inganta sakamakon su a wasannin gidan caca ko yin fare za su kuma sami babuka masu ban sha'awa sosai don sha'awar ku. Shin yana da sauƙi don samun daidai idan muka yi fare akan ƙwallon ƙafa ko kuma idan muka zaɓi golf? Shin akwai “hanyoyin tabbatar da wuta” don cin nasara a wasan caca? Menene dabarar "Martingale"? Wane irin fare ne ya dace idan ana batun yin babu kari ajiya? Menene alaƙa tsakanin rashin daidaiton da aka bayar da ƙimar haɗarin wani sakamako a cikin wasa? Haigh yana bayyana tushen ilimin lissafi wanda ke goyan bayan amsoshin duk waɗannan tambayoyin a sarari kuma a zahiri, amma yana gudu daga dabarun sihiri don tayar da ƙima da yawa a yanar gizo.

Lissafi da caca Irin littafin ne wanda ke ba da manufa sau uku: don sanarwa, koyarwa da nishadantarwa. Kowane babi ya haɗa da ƙananan darussan don mafi yawan masu karatu su iya kimanta fahimtar ra'ayoyin, sanya sabon ilimin da suka samu a gwaji kuma suyi mamakin mafi yawan kuskuren fahimta. Kuma shine ƙaramin horo a cikin wannan al'amari zai iya kai mu ga maganganu irin na wancan abin mamaki Bernard Shaw: "Idan makwabcina yana da motoci biyu kuma ba ni da su, ƙididdigar ta gaya mana cewa duka biyun muna da guda ɗaya".