SOLUTION: In a semiconductor company's quality control test, a machine found that 12 out of a sample of 324 computer chips were defective. How many of the 3659 such chips that the company ma

Question 1200605: In a semiconductor company's quality control test, a machine found that 12 out of a sample of 324 computer chips were defective. How many of the 3659 such chips that the company makes each month would you expect to be defective?

Answer by ikleyn(52832) (Show Source): You can put this solution on YOUR website!
.


Write a proportion as you read the problem

     = .


From the proportion, find x =  = 135.82.


ANSWER.  You may expect 136 - 136 defective chips, assuming that the rate is the same.

Solved.

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For introductory lessons on proportions, see the lessons
    - Proportions
    - Using proportions to solve word problems
    - Typical problems on proportions
    - Using proportions to estimate the number of fish in a lake
    - HOW TO algebraize and solve these problems using proportions
in this site.

Learn the entire subject from there.

Happy learning ( ! )

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