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If 4 bulbs are there each of which can be defective or non-defective then what is the probability that at least one bulb is non- defective?(a) 7/8(b) 15/16(c) 3/4(d) 1/2This question was addressed to me at a job interview.This intriguing question originated from Probability in chapter Probability of Mathematics – Class 11 |
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Answer» Right answer is (B) 15/16 |
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