SOLUTION: In a batch of a hundred light bulbs there are 5 bad bulbs. Inspectors inspects 10 at random. Compute probability of finding at least one defective light bulb

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Question 359101: In a batch of a hundred light bulbs there are 5 bad bulbs. Inspectors inspects 10 at random. Compute probability of finding at least one defective light bulb
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
P(bad)=5%2F100=0.05
P(good)=0.95
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P(at least 1)+P(none)=1
P(at least 1)=1-P(none)
P(none)=%280.95%29%5E10=0.59874
P(at least 1)=1-0.59874
P(at least 1)=0.40126