Wednesday
March 29, 2017

Post a New Question

Posted by on .

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?

  • algebra 1 - ,

    since you're sampling a fifth of the light-bulbs, then you would times 21 and 5 to get 105 defective light-bulbs

  • algebra 1 - ,

    Since 70 bulbs is 1/5 of all the light-bulbs,then 21*5=105 will be defective.

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question