To reduce laboratory costs, water samples from four public swimming pools are combined for one test for the presence of bacteria. Further testing is done only if the combined sample tests positive. Based on past results, there is a 0.009 probability of finding bacteria in a public swimming area. Find the probability that a combined sample from four public swimming areas will reveal the presence of bacteria. Is the probability low enough so that further testing of the individual samples is rarely necessary? ine prooabiHty of a posituve test resuit is (Round to three decimal places as needed.) Is the probability low enough so that further testing of the individual samples is rarely necessary? OA The probability is quite low, indicating that further testing of the individual samples will be a rarely necessary event. B. The probability is quite low, indicating that further testing is not necessary for any of the combined samples. OC. The probability is quite high, indicating that further testing of the individual samples will frequently be a necessary event. O D. The probability is quite high, indicating that further testing is necessary for all of the combined
To reduce laboratory costs, water samples from four public swimming pools are combined for one test for the presence of bacteria. Further testing is done only if the combined sample tests positive. Based on past results, there is a 0.009 probability of finding bacteria in a public swimming area. Find the probability that a combined sample from four public swimming areas will reveal the presence of bacteria. Is the probability low enough so that further testing of the individual samples is rarely necessary? ine prooabiHty of a posituve test resuit is (Round to three decimal places as needed.) Is the probability low enough so that further testing of the individual samples is rarely necessary? OA The probability is quite low, indicating that further testing of the individual samples will be a rarely necessary event. B. The probability is quite low, indicating that further testing is not necessary for any of the combined samples. OC. The probability is quite high, indicating that further testing of the individual samples will frequently be a necessary event. O D. The probability is quite high, indicating that further testing is necessary for all of the combined
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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Transcribed Image Text:To reduce laboratory costs, water samples from four public swimming pools are combined for one test
for the presence of bacteria. Further testing is done only if the combined sample tests positive. Based on
past results, there is a 0.009 probability of finding bacteria in a public swimming area. Find the
probability that a combined sample from four public swimming areas will reveal the presence of bacteria.
Is the probability low enough so that further testing of the individual samples is rarely necessary?
ine prooabiaty of a posituve test resuit is
(Round to three decimal places as needed.)
Is the probability low enough so that further testing of the individual samples is rarely necessary?
OA The probability is quite low, indicating that further testing of the individual samples will be a
rarely necessary event.
OB. The probability is quite low, indicating that further testing is not necessary for any of the
combined samples.
OC. The probability is quite high, indicating that further testing of the individual samples will
frequently be a necessary event.
O D. The probability is quite high, indicating that further testing is necessary for all of the combined
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