the probability is [tex] \frac{1}{9} [/tex] since the maximum value of digits allowed in the ones place is 9 (10 Counting 0, but it wont start with 0) and so since 7 is one out of nine the answer is truly [tex] \frac{1}{9} [/tex]
P.S. For decimal the answer is: 0.111111 and for Percentage it is 11.1111%
