A box contains nine bulbs out of which 4 are defective. If four bulbs – McqOptions

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1.	A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that at least one bulb is good.
A.	6/63
B.	2/63
C.	125/126
D.	1/126
Answer» D. 1/126

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