In a sample of 7500 new iphones, 18 were found to be defective. at this rate, how many defective iphones would be expected in a
sample of 60000 new iphones? use a proportion to set up and solve this problem. write a complete answer including units
1 answer:
In 7500 iPhones, 18 were found defective.
18 of 7500 is 0.24%
0.24% of iPhones were defective.
Using the information above:
In a sample of 60000 new iPhones, 144 would be found defective.
144 of 60000 is 0.24%
Answer: 144 defective iPhones would be expected in a sample of 60,000.
Hope this helps! Good luck. :-)
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