Question 1135954
first only blue is 3/12*9/11 or 27/132
second only blue is 9/12*3/11 or 27/132
the probability is 54/132 or 0.409

should be complement of no blue (9/12)(8/11) or 72/132
plus both blue (3/12)(2/11) or 6/132, and it is.