(Answered) An environmental engineer places monitors in a large number

Statistics

An environmental engineer places monitors in a large number of streams to measure the amount of pollutants in the water. If the amount of pollutants exceeds a certain level, the water is considered non-conforming.

In the past, the proportion non-conforming has been 0.04. What is the probability that one of the fifteen samples taken today will contain an excessive amount of pollutants?

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