Probability of rolling a 1 = 1/6
Probability of rolling a 1 = 1/6
Multiply these together (1/6)x(1/6) to get your probability that this will occur twice in a row.
(1/6)X(1/6)=0.02777777778 (the 7 is repeating)
This rounds up to 2.8% chance, or 2.78% (depends on what decimal place you have to round it to)