If a box contains 10 bulbs,of which just three are defective. If a random sample of five bulbs is drawn, find the probability that the sample contains no defective bulbs. Choose the correct choice from the following answers
A) 1/17 B) 1/99 C) 1/11 D) 1/12 E) 1/10
Explanation:   Total number of elementary events = \inline {\color{Black}10C_{5}}   Number of ways of selecting no defective bulbs i.e., 5 non-defective bulbs out of 7 is \inline {\color{Black}7C_{5}}.   So,required probability =\inline {\color{Black}7C_{5}/10C_{5}} = 1/12.   Answer: 1/12) 1/12
<result>D</result>
If a box contains 10 bulbs,of which just three are defective. If a random sample of five bulbs is drawn, find the probability that the sample contains no defective bulbs.