1. There are 5 red chips and 3 blue chips in a bowl. The red chips are numbered 1,2,3,4,5 resp and the blue chips are numbered 1,2,3 resp. If 2 chips are to be drawn at random and without replacement, find the prob that these chips have either the same number or the same color. 2. In a lot of 50 light bulbs, there are 2 bad bulbs. An inspector examines 5 bulbs, which are selected at random and without replacement. a) Find the prob of atleat one defective bulb among the 5. b) How many bulbs should be examined so that the probability of finding atleat 1 bad bulb exceeds 1/2?