<prompt> Translate the following text to EnglishHata hivyo, hata uchaguzi wa kisayansi ni chini ya makosa, na si tu kwa kiwango cha kiwango cha makosa ambayo ni kutokana na makosa ya kudhani katika uteuzi wa sampuli.  <response>: Of course, even scientific polls are subject to error, and not just to the standard margin of error that is due to assumed errors in sample selection. 