The amount of pollutants that are found in waterways of cities in a county is normally...
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The amount of pollutants that are found in waterways of cities in a county is normally distributed with mean 8.5 ppm and standard deviation 1.4 ppm. Five randomly selected cities in the county are studied. ppm Round answer to one decimal place. Do not write 0.1 as 1. The amount of pollutants that are found in waterways of cities in a county is normally distributed with mean 8.5 ppm and standard deviation 1.4 ppm. Five randomly selected cities in the county are studied. The probability that one randomly selected city's waterway in the county has at least 9 ppm pollutants is %. Do not use the Empirical Rule. Give answer to the nearest percent (whole number). The amount of pollutants that are found in waterways of cities in a county is normally distributed with mean 8.5 ppm and standard deviation 1.4 ppm. Five randomly selected cities in the county are studied. ppm Round answer to one decimal place. Do not write 0.1 as 1. The amount of pollutants that are found in waterways of cities in a county is normally distributed with mean 8.5 ppm and standard deviation 1.4 ppm. Five randomly selected cities in the county are studied. The probability that one randomly selected city's waterway in the county has at least 9 ppm pollutants is %. Do not use the Empirical Rule. Give answer to the nearest percent (whole number).
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