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# Probability that both circuits are defective

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A factory worker places 93 newly created circuits on a shelf to be checked for quality. Of these, 8 will not work correctly. Suppose that she is asked to randomly select two circuits, without replacement, from the shelf. What is the chance that both circuits she selects will be defective? Show step by step work! Approximate the solution to the nearest ten thousandth.

##### Solution Summary

Probability that both circuits are defective is explicated.

##### Solution Preview

For the first circuit there will be 8 choices out of 93 and since there is ...

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• BSc, Meerut University
• MSc, Meerut University
• MPhil, Institute of Advanced Studies
• MSc, AIT
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