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OpenStudy (anonymous):
A quality-control center finds that 2 out of 250 toy trains are defective. How many trains would they expect to be defective in a batch of 10,000? A. 250 B. 125 C. 80 D. 40
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OpenStudy (anonymous):
i need help sovling this
OpenStudy (anonymous):
@DarkMoonZ help plz bro
OpenStudy (anonymous):
i think D. 40
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