Hi, I just need help with C & D, Thanks. The amount of pollutants that are found in waterways near large cities is normally distributed with mean 8.5 ppm and standard deviation 1.6 ppm. 13 randomly selected large cities are studied. Round all answers to 4 decimal places where possible. C. What is the probability that one randomly selected city's waterway will have more than 7.9 ppm pollutants? D. For the 13 cities, find the probability that the average amount of pollutants is more than 7.9 ppm.
Hi, I just need help with C & D, Thanks. The amount of pollutants that are found in waterways near large cities is normally distributed with mean 8.5 ppm and standard deviation 1.6 ppm. 13 randomly selected large cities are studied. Round all answers to 4 decimal places where possible. C. What is the probability that one randomly selected city's waterway will have more than 7.9 ppm pollutants? D. For the 13 cities, find the probability that the average amount of pollutants is more than 7.9 ppm.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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Hi, I just need help with C & D, Thanks.
The amount of pollutants that are found in waterways near large cities is
C. What is the probability that one randomly selected city's waterway will have more than 7.9 ppm pollutants?
D. For the 13 cities, find the probability that the average amount of pollutants is more than 7.9 ppm.
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