Concept explainers
(a)
To graph: The scatter plot of the data, where
(b)
To calculate: The least square regression line that fits the given data using the regression feature of the graphing utility. Also, graph the model and the scatter plot in the same viewing window as in part (a), and then, compare it with the graph obtained in part (a) using given data.
(c)
To calculate: The amount of beef produced on private farms in
(d)
The meaning of the slope of the linear model obtained in part (b) in the context of the given problem.
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College Algebra
- Cellular Phone Subscribers The table shows the numbers of cellular phone subscribers y in millions in the United States from 2008 through 2013. Source: CTIA- The Wireless Association Year200820092010201120122013Number,y270286296316326336 (a) Find the least squares regression line for the data. Let x represent the year, with x=8 corresponding to 2008. (b) Use the linear regression capabilities of a graphing utility to find a linear model for the data. How does this model compare with the model obtained in part a? (c) Use the linear model to create a table of estimated values for y. Compare the estimated values with the actual data.arrow_forwardFill in the blanks. Two techniques for fitting models to data are direct and inverse and least squares .arrow_forward
- Elementary Linear Algebra (MindTap Course List)AlgebraISBN:9781305658004Author:Ron LarsonPublisher:Cengage Learning