Human Population Growth Scenario, homework help

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Mathematics

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After you have completed the Human Population Growth Scenario, complete the following:

  • How have the skills you learned in Week 4 of the course helped you in this scenario?
  • Why is this scenario important to your life? Has it affected your thinking on population growth and the world's resources?
  • What would you change to make this scenario better?
  • How would you rate your understanding of the topics and processes to complete this scenario?  Why?

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Human Population Growth Scenario MTH/215 Version 2 1 Human Population Growth Scenario You have been appointed to a team to investigate human population growth and food/water consumption. Your ultimate goal is to determine when we will no longer be able to produce enough food and water for the world’s population. There are four main roles in this project. Select a role and complete the task listed under the role. Role #1 Population Analyst 1 (historical archives) You believe that the answer lies in historical data. Investigate the estimated world population from 1 A.D. to 1750 A.D. in the following U.S. Census data: https://www.census.gov/population/international/data/worldpop/table_history.php a) Collect the data (population vs. year) from 1 A.D. to 1750 A.D., and put the data into Excel® (use lower summary). b) Create a scatterplot of the data (population vs. year). c) Perform linear regression and exponential regression on your scatterplot. Which is a better fit? How do you know? What is the best fit equation? d) Experts believe that the world’s maximum population is 10,000,000,000. According to your results, when will we reach 10 billion? How confident are you in your prediction? Why? What factor(s) may also need to be considered? e) Include your graph, equation, calculations and results. Role #2 Population Analyst 2 (modern archives) You believe that the answer lies in modern data. Investigate the estimated world population from 1750 A.D.to 2015 A.D. in the following U.S. Census data: https://www.census.gov/population/international/data/worldpop/table_history.php https://www.census.gov/population/international/data/worldpop/table_population.php a) Collect the data (population vs. year) from 1750 A.D. to 2015 A.D. You will have to collect data from the first table (use the lower summary) and add in the data from the second table. Put the data into Excel®. b) Create a scatterplot of the data (population vs. year). c) Perform linear regression and exponential regression on your scatterplot. Which is a better fit? How do you know? What is the best fit equation? d) Experts believe that the world’s maximum population is 10,000,000,000. According to your results, when will we reach 10 billion? How confident are you in your prediction? Why? What factor(s) may also need to be considered? e) Include your graphs, equations, calculations and results. (Continued on next page) Human Population Growth Scenario MTH/215 Version 2 2 Role #3 Food Analyst You believe that the answer lies in calculating how much land we have on earth that we use for agriculture. The table below is the percent of arable land being used on earth (land that is being used for agriculture) per year. Year Percent of Arable Land Used for Agriculture 1991 18.60 1992 18.80 1993 19.00 1994 19.20 1995 19.50 1996 19.80 1997 20.10 1998 20.30 1999 20.50 2000 20.80 2001 21.20 2002 21.50 2003 21.80 2004 22.10 2005 22.30 a) Create a scatterplot of the data (percent arable land vs. year). b) Perform linear regression and exponential regression on your scatterplot. Which is a better fit? How do you know? What is the best fit equation? c) When will we be using all of the possible land (100%)? How confident are you in this prediction? Why? What factor(s) may also need to be considered? d) Include your graphs, equations, calculations and results. (Continued on next page) Human Population Growth Scenario MTH/215 Version 2 3 Role #4 Water Analyst You believe that the answer lies in calculating how much fresh water we use on earth for consumption, agriculture, etc. The table below is the estimated volume of freshwater withdrawn on earth in a year vs. the year the data was taken. a) Create a scatterplot of the data (yearly volume vs. year). b) Perform linear regression and exponential regression on your scatterplot. Which is a better fit? How do you know? What is the best fit equation? c) If the average volume of precipitation on earth is 500,000 cubic kilometers per year, when will we be using as much as we get from precipitation? How confident are you in this prediction? Why? What factor(s) may also need to be considered? d) Present your graphs, equations, calculations and results to the leader and the group. Year Volume of Freshwater Withdrawn in a Year (in cubic kilometers) 1960 2000 1970 2500 1980 3100 1990 3600 1995 3800 2000 4000 Source: University of Michigan, “Human Appropriation of the World's Fresh Water Supply.” http://www.globalchange.umich.edu/ Click the Assignment Files tab to submit your assignment.
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Anonymous
I was struggling with this subject, and this helped me a ton!

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