Newly produced beer must be checked to see if it meets predetermined standards. The percentage of alcohol is determined by distillation. A set of measurements is listed for one batch.
Sample
1 2 3 4
Volume of beer (L)
8.00 10.00 9.00 9.00
Ethanol distilled (mL)
392 500 459 444
What is the average percentage by volume of ethanol for this batch?
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