SOLUTION: A a quality control inspector examined 100 light bulbs and found 7 defective.at this rate how many defective bulbs would there be in a lot of 3000 bulbs?

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Question 1100591: A a quality control inspector examined 100 light bulbs and found 7 defective.at this rate how many defective bulbs would there be in a lot of 3000 bulbs?
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
there were 7 defective out of a batch of 100.

the defective rate is therefore 7/100.

at this rate, a batch of 3000 would contain 7/100 * 3000 = 210 defective bulbs.