Subject
Quantitative Aptitude
Topic
Probability
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.
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.
ক)
5/12খ)
7/12গ)
3/14ঘ)
1/12Explanation
Total number of elementary events = Number of ways of selecting no defective bulbs i.e., 5 non-defective bulbs out of 7 is So,required probability = = 1/12.Related questions
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