SOLUTION: If i perform 1,214 glucoses for a month. I review 289 glucoses of the 1,214 and found 12 errors. What is my percentage of error?

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Question 151284: If i perform 1,214 glucoses for a month. I review 289 glucoses of the 1,214 and found 12 errors. What is my percentage of error?
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!
Out of 289 reviewed, you're % of error is,
%2812%2F289%29100=4.15%
Or,
%28%28289-12%29%2F289%29%2A100=95.85% are right.
Of the remaining 925 you didn't review (1214-289) you assumed they're right.
The more glucose you review, the lesser your percentage of error if it remains at 12 errors.
Thank you,
Jojo