Essay
Certification Test A standard certification test was given at three locations. 1,000 candidates took the test at location A , 600 candidates at location B , and 400 candidates at location C . The percentages of candidates from locations A , B , and C who passed the test were 70%, 68%, and 77%, respectively. One candidate is selected at random from among those who took the test. {Certification Test Narrative} What is the probability that the selected candidate passed the test?
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