(a) (2 points) A production firm manufactures ,slit bulbs using three machine 3 , 41, A2, As. Of the total output, machine A, produces 2170, 42 produces 42% and As produces the rest (b Fast data reveals that 7% of the output fromll machine A, is defective, 3/0 from A2, and 310 from A3. If a light bulb is chosen at random and found to be defective, what is the probability that it came from machine A3. DOX your