A biomedical research company produces 50%50% of its insulin at a plant in Kansas City, and the remainder is produced at a plant in Jefferson City. Quality control has shown that 1.2%1.2% of the insulin produced at the plant in Kansas City is defective, while 0.6%0.6% of the insulin produced at the plant in Jefferson City is defective. What is the probability that a randomly chosen unit of insulin came from the plant in Jefferson City given that it is defective?