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A box has 100 bulbs of which 4 are defective. One bulb is chosen at random. What is the probability that it is not defective?
A96/100
B24/25
C4/100
D1/25
Answer & Solution
Correct answer: B. 24/25
Good bulbs: 96. P(not defective) = 96/100 = 24/25.
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