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A researcher for the EPA measured the amount of arsenic in the water near a sewage treatment plant. Over 5 days, he took
Posted: Sun Oct 03, 2021 12:55 pm
by answerhappygod
- A Researcher For The Epa Measured The Amount Of Arsenic In The Water Near A Sewage Treatment Plant Over 5 Days He Took 1 (32.05 KiB) Viewed 162 times
A researcher for the EPA measured the amount of arsenic in the water near a sewage treatment plant. Over 5 days, he took n = 20 measurements (in parts per billion). His sample data is summarized in the ogive graph shown below (note that you can click on it to enlarge it). 20 0 15 10 O 5 20 25 30 35 40 45 60 65 Arsenic (6) How many measurements taken in this time frame were less than 45 ppb? 190.3.de estos do ans =