A box contains eight bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that at least one bulb is good?	Choose the correct choice from the following answers
A) 13/16
B) 1/2
C) 15/16
D) 11/16
E) 9/16
Required probability   = 1 - 1/16   = 15/16   Answer: 15/16
<result>C</result>
A box contains eight bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that at least one bulb is good?