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Error rates were measured for three different companies. The table below shows the number of employees in each company and the average error rate for

Error rates were measured for three different companies. The table below shows the number of employees in each company and the average error rate for each company. What is the overall average error rate across employees of all three companies?

Company	Number of Employees	Average Error Rate
A	17	9.8%
B	31	14.3%
C	35	5.7%

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