robertbyrd2017

27.06.2019 • 

Mathematics

To reduce laboratory costs, water samples from twotwo 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 0.0070.007 probability of finding bacteria in a public swimming area. find the probability that a combined sample from twotwo 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?

Ответ:

mahaleyrenee1195

29.05.2020

Mathematics

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Mr. Tommy was commissioned to build a water tank of 729 m3. How much should the edge of the tank measure?Mr. Tommy was commissioned to build a water tank of 729 m3. How much should the edge of the tank measure?vv

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Ответ:

rdrboo

03.05.2020

Mathematics

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I think it would be 1/2 

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