Question

Suppose a store has 100 light bulbs in stock. Assume 40 light bulbs are from Distributor A and the remainder of the light bulbs are from Distributor B. Assume 5.0% of the light bulbs from Distributor A are defective and 10.0% are defective from Distributor B. If a consumer purchases 3 light bulbs, what is the probability that exactly 2 of the light bulbs are defective?

Answer 1

15 percent i believe