company produces shotgun shells in batches of 500 . A sample of 20 is tested from each batch, and if more than one fect 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? 2 (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? The table defines a discrete probability distribution. Find the expected value of the distribution