Batches that include 60 coil springs from production process are checked for conformance to customer requirements. The mean number of nonconforming coil springs in batch is 5. Suppose that the number of nonconforming springs in a batch, denoted as X, is a binomial random variable. Round your answers to three decimal places (e.g. 98.765) in parts b-d.
(a) What are n and p?
(c) What is P(X ? 4)?
(d) What is P(X ? 3)?