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If the test says that pollutants are not present in a

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A test to detect pollutants is 90% accurate when pollutants are present in a sample and 96% accurate when pollutants are not present. This test is used on a set of samples of which 65% are polluted.

a) For a particular sample, what is the probability that the test says pollutants are present?

b) if the test says that pollutants are not present in a particular sample, what is the probability that is fact there are pollutant in the sample in question?

Reference no: EM13606651

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