A company produces shotgun shells in batches of 250. A sample of 20 is tested from each batch, and if more than one defect is found, the entire batch is tested. (Round your answers to five decimal places.)

(a) If 1% of the shells are actually defective and we assume independence, what is the probability of 0 defective shells in the sample? (b) If 1% of the shells are actually defective and we assume independence, what is the probability of 1 defective shell in the sample? (c) If 1% of the shells are actually defective and we assume independence, what is the probability of more than 1 defective shell in the sample?