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[link] shows the population, in thousands, of harbor seals in the Wadden Sea over the years 1997 to 2012.
Year | Seal Population (Thousands) | Year | Seal Population (Thousands) |
---|---|---|---|
1997 | 3.493 | 2005 | 19.590 |
1998 | 5.282 | 2006 | 21.955 |
1999 | 6.357 | 2007 | 22.862 |
2000 | 9.201 | 2008 | 23.869 |
2001 | 11.224 | 2009 | 24.243 |
2002 | 12.964 | 2010 | 24.344 |
2003 | 16.226 | 2011 | 24.919 |
2004 | 18.137 | 2012 | 25.108 |
Access this online resource for additional instruction and practice with exponential function models.
Visit this website for additional practice questions from Learningpod.
What situations are best modeled by a logistic equation? Give an example, and state a case for why the example is a good fit.
Logistic models are best used for situations that have limited values. For example, populations cannot grow indefinitely since resources such as food, water, and space are limited, so a logistic model best describes populations.
What is a carrying capacity? What kind of model has a carrying capacity built into its formula? Why does this make sense?
What is regression analysis? Describe the process of performing regression analysis on a graphing utility.
Regression analysis is the process of finding an equation that best fits a given set of data points. To perform a regression analysis on a graphing utility, first list the given points using the STAT then EDIT menu. Next graph the scatter plot using the STAT PLOT feature. The shape of the data points on the scatter graph can help determine which regression feature to use. Once this is determined, select the appropriate regression analysis command from the STAT then CALC menu.
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