Question 13
Two darts are thrown at a 3-by-3 square on the right, each
lands in a different 1-by-1 square at random.
What is the probability that the 1-by-1 squares the darts land in
are next to each other, either horizontally or vertically?
lands in a different 1-by-1 square at random.
What is the probability that the 1-by-1 squares the darts land in
are next to each other, either horizontally or vertically?