Subject
Quantitative Aptitude
Topic
Probability
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 exactly one defective bulb
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 exactly one defective bulb
ক)
5/12খ)
7/12গ)
3/14ঘ)
1/12Explanation
Total number of elementary events = Number of ways of selecting exactly one defective bulb out of 3 and 4 non-defective out of 7 is So,required probability = = 5/12.Related questions
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