A manufacturer of window frames knows from long experience that $10 \%$ of the production will have some type of minor defect that will require an adjustment. What is the probability that in a sample of 16 window frames: a. None will need adjustment? (Round the final answer to 3 decimal places.) Probability b. At least one will need adjustment? (Round the final answer to 3 decimal places.) Probability c. More than two will need adjustment? (Round the final answer to 3 decimal places.) Probability SP.AS. 1169