Mathematics, 25.02.2021 18:10, avrihalverson
Arsenic in Toenails Arsenic is toxic to humans, and people can be exposed to it through contaminated drinking water, food, dust, and soil. Scientists have devised an interesting new way to measure a person’s level of arsenic poisoning: by examining toenail clippings. In a recent study,1 scientists measured the level of arsenic (in mg/kg) in toenail clippings of eight people who lived near a former arsenic mine in Great Britain. The following levels were recorded: 0.8 1.9 2.7 3.4 3.9 7.1 11.9 26.0 1Button, M., Jenkin, G.,Harrington, C., and Watts, M., ‘‘Human Toenails as a biomarker of exposure to elevated environment arsenic,’’ Journal of Environmental Monitoring, 2009; 11(3): 610–617. Data are reproduced from summary statistics and are approximate.
(a) Do you expect the mean or the median of these toenail arsenic levels to be larger?
Mean
Median
(b) Calculate the mean. Round your answer to one decimal place. Meanequals mg/kg Calculate the median.
Enter the exact answer. Median equals mg/kg
Answers: 3
Mathematics, 21.06.2019 18:00, brooke0713
Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?
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Mathematics, 21.06.2019 22:20, anicholson41
Question 9 of 10 2 points suppose your sat score is 1770. you look up the average sat scores for students admitted to your preferred colleges and find the list of scores below. based on your sat score of 1770, which average score below represents the college that would be your best option? o a. 1790 o b. 2130 o c. 2210 od. 1350
Answers: 3
Arsenic in Toenails Arsenic is toxic to humans, and people can be exposed to it through contaminated...
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