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A chemist at a pharmaceutical company wants to test the quality of a new batch...

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Basic Math

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A chemist at a pharmaceutical company wants to test the quality of a new batch of microscopes Which of the following best describes a random sample of microscopes D The microscopes in the first shipment that was received are easily accessible So he selects all 60 of the microscopes in this shipment The chemist forms groups of 12 microscopes based on the laboratories that the microscopes are in Then he randomly chooses 5 groups and selects all of the microscopes in these groups The chemist assigns each microscope a different number Using a random number table he draws 60 of those numbers at random Then he selects the microscopes assigned to the drawn numbers Every set of 60 microscopes is equally likely to be drawn using the random number table

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