amnazafar995 amnazafar995

02-04-2017
Mathematics

contestada

A machine produces a total of 12,000 bolts a day, which are on the average 3% defective. Find the probability that out of 600 bolts chosen at random, 12 will be defective.

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MLPshine MLPshine

02-04-2017

12/600 will be equal to 2%.
You can check the answer this way:
2% of 600
2/100 × 600
Cut the '00' in 600 and 100...
2/1 × 6
= 12

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