The normal daily maximum temperatures T (in degrees Fahrenheit) for Chicago, Illinois, are shown in the table (a) Use a graphing utility to plot the data and find a model for the data of the form T(t) a b sin(ct d) where T is the temperature and t is the time in months, with t 1 corresponding to January (b) Use a graphing utility to graph the model How well does the model fit the data (c) Find T and use a graphing utility to graph T (d) Based on the graph of T, during what times does the temperature change most rapidly Most slowly Do your answers agree with your observations of the temperature changes Explain Month Temperature Month Temperature Month Jan 31 0 Feb Mar Apr 35 3 46 6 59 0 May Jun Jul 70 0 79 7 84 1 Sep Oct Nov Temperature 74 8 62 3 48 2 Aug 81 9 Dec 34 8

Question: The normal daily maximum temperatures T (in degrees Fahrenheit) for Chicago, Illinois, are shown in the table. (a) Use a graphing utility to plot the

The normal daily maximum temperatures T (in degrees Fahrenheit) for Chicago, Illinois, are shown in the table.

Month Temperature Month Temperature Month Jan 31.0 Feb Mar Apr 35.3 46.6

(a) Use a graphing utility to plot the data and find a model for the data of the form T(t) = a + b sin(ct − d) where T is the temperature and t is the time in months, with t = 1 corresponding to January.

(b) Use a graphing utility to graph the model. How well does the model fit the data?

(d) Based on the graph of T′, during what times does the temperature change most rapidly? Most slowly? Do your answers agree with your observations of the temperature changes? Explain.

Month Temperature Month Temperature Month Jan 31.0 Feb Mar Apr 35.3 46.6 59.0 May Jun Jul 70.0 79.7 84.1 Sep Oct Nov Temperature 74.8 62.3 48.2 Aug 81.9 Dec 34.8

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