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.\nOptions:\n(A) 6/63\n(B) 2/63\n(C) 125/126\n(D) 1/126\n(E) 1/63 Stream of consciousness first, then make a decision:
User
Required probability = 1 - 1/126 = 125/126
Thus, the answer is (C).
Assistant