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OpenStudy (anonymous):
Three out of 200 machine parts were found to be defective. About how many parts would be expected to be defective out of 2500 parts? A. 15 B. 30 C. 38 D. 67
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OpenStudy (anonymous):
|dw:1395709816981:dw| x = (75/2) = 37.5 -> 38
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