(Solution) - A batch of 200 calculators contains 3 defective units What -(2025 Original AI-Free Solution)

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A batch of 200 calculators contains 3 defective units. What is the probability that a sample of three calculators will have
(a) No defective calculators?
(b) All defective calculators?
(c) At least one defective calculator?
(d) At least one nondefective calculator?
Use counting principles to find the probability.