<prompt> Carraa mataa lama argachuu saantima afur keessatti shallagi.nan  <response>: Carraan mataa lama argachuu saantima afur keessatti foormulaa raabsa baayinoomaa fayyadamuun shallagama. Foormulaan isaa: PXk nk pk qnk yoo tau: n lakkoofsa toossoo 4 k lakkoofsa mataa 2 p carraa ti kan mataa argachuu 0.5, saantima haqa qabeessa waan taeef q carraa funyaan argachuuti 1 - p, kunis saantima haqa qabeessa waan taeef 0.5 dha Kanaafuu, gatiiwwan kana foormulaa keessatti cufuudhaan: P arganna X2 42 0.52 0.52 6 0.25 0.25 0.375 Kanaafuu, carraan mataa lama argachuu saantima afur keessatti 0.375, ykn 37.5 dha. 