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A box contains nine bulbs out of which 4 are defective.
Question 1:
A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random,
find the probability that atleast one bulb is good.
A.
6/63
B.
2/63
C.
125/126
Feedback
Required probability = 1 - 1/126 = 125/126
D.
1/126
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