18. Median Income The data in the table show the median incomes y (in thousands of dollars) for samples of householders of various ages z in the United States in 2017. (Adapted from U.S. Census Bureau) 20 30 40 50 60 70 40.1 62.3 78.4 80.7 68.6 41.1 a. Use the regression capabilities of a graphing utility to find a quadratic model for the data. b. Use a graphing utility to plot the data and graph the model. c. Use the model to approximate the median incomes for a sample of 27-year-old householders and a sample of 56-year-old householders.

18. Median Income The data in the table show the median incomes y (in thousands of dollars) for samples of householders of various ages z in the United States in 2017. (Adapted from U.S. Census Bureau) 20 30 40 50 60 70 40.1 62.3 78.4 80.7 68.6 41.1 a. Use the regression capabilities of a graphing utility to find a quadratic model for the data. b. Use a graphing utility to plot the data and graph the model. c. Use the model to approximate the median incomes for a sample of 27-year-old householders and a sample of 56-year-old householders.

Algebra and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter1: Equations And Graphs

Section1.FOM: Focus On Modeling: Fitting Lines To Data

Problem 7P

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