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Mathematics, 25.12.2020 17:10 Karinaccccc

On a given day, the proportion of workers from Company B who purchase a coffee from the company cafeteria is 0.62 and the proportion of workers from Company C who purchase a coffee from the company cafeteria is 0.71. A random sample of 40 workers was selected from Company B and another random sample of 40 workers was selected from Company C. The proportion of workers from Company B who purchased coffee was

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On a given day, the proportion of workers from Company B who purchase a coffee from the company cafe...
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