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OpenStudy (anonymous):
@ElonaSushchik A battery manufacturer randomly tests 500 batteries and finds that 3 are defective. How many defective batteries would be expected in a shipment of 12,000 batteries? A. 120 B. 72 C. 60 D. 36
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OpenStudy (anonymous):
set up a ratio ever 3 per 500 is defective so 3/500
OpenStudy (anonymous):
now we have 1200 so|dw:1428613677478:dw|
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