Box 1 has 10 light bulbs of which 3 are defective
Box II has 6 light bulbs which 2 are defective.
Box III Has 8 light bulbs of which 5 are defective A box is chosen at random and a bulb is drawn at random.
1 .What is the probability that the bulb drawn is defective?
2 what is the probability that the defective bulb was from box I?