An urn has 7 good and 3 defective bulbs. Given a selected bulb is not defective, probability it is good is:
An urn has 7 good and 3 defective bulbs. Given a selected bulb is not defective, probability it is good is:
- A. 1
- B. 0.7
- C. 0.3
- D. 0.5
Answer: A) 1
Explanation: Not defective means good bulb. Probability=1.
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