. Data Analysis: Radio Stations The table shows the

Chapter , Problem 102

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. Data Analysis: Radio Stations The table shows the numbers of noncommercial FM radio stations in the United States from 2002 through 2009. (Source: Federal Communications Commission) (a) Use a graphing utility to create a scatter plot of the data. Let represent the year, with corresponding to 2002. (b) Use the regression feature of the graphing utility to find the equation of the least squares regression line that fits the data. Then graph the model and the scatter plot you found in part (a) in the same viewing window. How closely does the model represent the data? (c) Use the model to predict the number of noncommercial FM radio stations in 2020. (d) Interpret the meaning of the slope of the linear model in the context of the problem.

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