Among 12 metal parts produced in a machine shop, 3 are defective. If a random sample of 5 of these metal parts is selected, nd: (a) The probability that this sample will contain at least two defectives. (Do not round the intermediate answers. Round your answer to 4 decimal places.) 9 Answer is complete but not entirely correct. Probability 0.2500 0 | (b) The probability that this sample will contain at most one defective. (Round your answer to 4 decimal places.) 9 Answer is complete but not entirely correct. ' Probability 0.3672 0