Question 1075433
Look at the possible outcomes and their sums,
2,3=5
2,4=6
2,5=7 <--
3,2=5
3,4=7 <--
3,5=8
4,2=6
4,3=7 <--
4,5=9
5,2=7 <--
5,3=8
5,4=9
Out of the 12 possible outcomes, four of them sum to 7.
{{{P(7)=4/12=1/3}}}