Mathematics, 20.02.2020 07:34 morganzahn16
A new analytical method to detect pollutants in water is being tested. This new method of chemical analysis is important because, if adopted, it could be used to detect three different contaminates - organic pollutants, volatile solvents, and chlorinated compounds - instead of having to use a single test for each pollutant. The makers of the test claim that it can detect high levels of organic pollutants with 99.7% accuracy, volatile solvents with 99.92% accuracy, and chlorinated compounds with 89.7% accuracy. If a pollutant is not present, the test does not signal. Samples are prepared for the calibration of the test and 60% of them are contaminated with organic pollutants, 27% with volatile solvents, and 13% with traces of chlorinated compounds. A test sample is selected randomly.(a) Whatis the probability that the test will signal?
(b) Ifthe test signals, what is the probability that chlorinatedcompounds are present?
Answers: 3
Mathematics, 21.06.2019 21:30, kristinashau
If you flip a coin 3 times, what is the probability of flipping heads 3 times? a. p(3 heads) = 3/8 b. p(3 heads) = 1/6 c. p(3 heads) = 1/8 d. p(3 heads) = 1/2
Answers: 2
Mathematics, 21.06.2019 23:50, jasminechambers642
What is the probably of getting heads when poing a coin and getting a number greater than or equal to 5 when rolling a single diea) 1/6b) 1/3c) 1/4d) 1/12
Answers: 2
Mathematics, 22.06.2019 01:10, ljdavies51
Use a standard normal table to determine the probability. give your answer as a decimal to four decimal places. −1.5< < 1.5)
Answers: 3
A new analytical method to detect pollutants in water is being tested. This new method of chemical a...
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