Astore has 80 modems in its inventory, 30 coming from source a and the remainder from source b. of the modems from source a, 20% are defective. of the modems from source b, 8% are defective. calculate the probability that two out of a random sample of five modems from the store’s inventory are defective. (a) 0.010 (m) 0.078 (x) 0.102 (d) 0.105 (e) 0.125