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Among 17 electrical components exactly 4 are known not to function properly. If 8 components are...

Among 17 electrical components exactly 4 are known not to function properly. If 8 components are randomly selected, find the following probabilities:
(i) The probability that all selected components function properly.
(ii) The probability that exactly 3 are defective.
(iii) The probability that at least 1 component is defective.

Math   Statistics-And-Probability   
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