 
 <translate> If the last digit is 0, 2, 4, 6, or 8, the number is even and therefore not prime. If the last digit is 5, the number is divisible by 5 and therefore not prime. The only possibilities are 1, 3, 7, and 9. So the probability is approximately 1/4 (answer A). We say approximately because there is a certain degree of randomness in the distribution of prime numbers.
The final answer: (A). <ibo> Ọ bụrụ na ọnụọgụgụ ikpeazụ ya bụ 0, 2, 4, 6, ma ọ bụ 8, ọnụọgụgụ ahụ bụ ọbụna, n'ihi ya kwa, ọ bụghị nke mbụ. Ọ bụrụ na ọnụọgụ ikpeazụ bụ 5, ọnụọgụ ahụ ga-ekewa 5 ma ya mere ọ bụghị isi. Nanị ihe ndị ga-ekwe omume bụ 1, 3, 7, na 9. Ya mere, ihe puru omume bụ ihe dịka 1/4 (azịza A). Anyị na-ekwu ihe dị ka n'ihi na e nwere ogo nke randomness na nkesa nke ọnụ ọgụgụ ndị bụ isi. Azịza ya bụ: (A). 