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From a batch of 3000light bulbs, 100 were selected at random and tested. If 5of bulbs on the sample found defective,How many defective bulb will be found in entire batch?

From a batch of 3000light bulbs, 100 were selected at random and tested. If 5of bulbs on the sample found defective,How many defective bulb will be found in entire batch? Correct Answer 150

Of 100 bulbs, the number of defective bulbs is 5 So, of 3000 bulbs, the number of defective bulbs is = 5 x 3000 / 100 = 150.

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