A factory makes lamps. The probability that a lamp is defective is 8%. The factory tests a random sample of 50 lamps. (a) Find the probability that there are exactly 46 defective lamps in the sample. 0.204 (round to 3 decimal places) (b) Find the probability that there is at least one defective lamp in the sample 0.985 (round to 3 decimal places) (c) What is the expected number of defective lamps in the sample? 4 (round to 1 decimal places)