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Mathematics, 02.09.2020 04:01 goreeefk4939

An EPA contractor needs to test the concentration of a substance in ten samples of the ground water. Seventy samples were already collected from a single source over the course of a week at regular intervals. The contractor wants to test samples

evenly over the course of that time frame.

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An EPA contractor needs to test the concentration of a substance in ten samples of the ground water....
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