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Among 15 electrical components exactly 3 are known not to function properly. If 6 components are...

Among 15 electrical components exactly 3 are known not to function properly. If 6 components are randomly selected, find the following probabilities:

(i) The probability that all selected components function properly.
(ii) The probability that exactly 2 are defective.
(iii) The probability that at least 1 component is defective.

Math   Statistics-And-Probability   
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