kennycooper865 kennycooper865
  • 13-05-2017
  • Mathematics
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From a shipment of 350 light-bulbs, a sample of 70 was selected at random and tested. If 21 light-bulbs in the sample were found to be defective, how many defective light-bulbs would be expected in the entire shipment?

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cutiepatootie03
cutiepatootie03 cutiepatootie03
  • 14-05-2017
The answer is 105 because you have to set it up in a proportion
 
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