What are the two least likley sums to be rolled on two regular dice? Why?

I think its 2 and 12

Step-by-step explanation:

Any double is not so likely as say a 7 (there are more ways to get a 7 than say a double 1 because a 7 may be a 6&1, 2&5 or 3&4 but there's one 1 way to get a double 1).

I think it must be 2 (double 1) and 12 (double 6) because there are no other ways to get these totals. Other doubles can give same value as other combinations For example double 2 = value 4 and 3 and 1 = 4.