Concept explainers
Cell Phone Towers The following data represent the number of cell sites in service in the United States from 1985 to 2013 at the end of each year.
(a) Using a graphing utility, draw a
(b) Using a graphing utility, build a logistic model from the data.
(c) Graph the logistic function found in part (b) on the scatter diagram.
(d) What is the predicted carrying capacity for cell sites in the United States?
(e) Use the model to predict the number of cell sites in the United States at the end of 2019.
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