document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1180630>Question 1180630</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The table below provides the average monthly temperature in London, England over the course of a year\r<BR>\n" );
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document.write( "   Months         Temperature (in degree)<BR>\n" );
document.write( "1 January                7 degree<BR>\n" );
document.write( "2 February             7.5 degree<BR>\n" );
document.write( "3 March                 9 degree<BR>\n" );
document.write( "4 April               11 degree<BR>\n" );
document.write( "5 May                  14 degree<BR>\n" );
document.write( "6 June                17 degree<BR>\n" );
document.write( "7 July               19.5 degree<BR>\n" );
document.write( "8 August             19 degree<BR>\n" );
document.write( "9 September          16.5 degree<BR>\n" );
document.write( "10 October           13 degree<BR>\n" );
document.write( "11 November         9.5 degree<BR>\n" );
document.write( "12 December          7 degree\r<BR>\n" );
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document.write( "a. Determine the equation of a sinusoidal regression function that best models the data. Express the values of a, b, c, and d to the nearest hundredth.\r<BR>\n" );
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document.write( "b. Use the sinusoidal regression equation above to predict the average temperature, to the nearest hundredth, in London next February.\r<BR>\n" );
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document.write( "c. Most tourists visit London during months when the average temperature is 13 °C and higher. Determine the month of the year when the temperature first reaches 13 °C.\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #810353 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52787)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=810353\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "Go to this web-site\r<BR>\n" );
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document.write( "https://stats.blue/Stats_Suite/sinusoidal_regression_calculator.html\r<BR>\n" );
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document.write( "Find there free of charge online calculator for sinusoidal regression.\r<BR>\n" );
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document.write( "Use it to make at least part of the job on your own - I mean that part, which you can do using this calculator.\r<BR>\n" );
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document.write( "I am open to accept your &nbsp;\"THANKS\" &nbsp;for my instructions.\r<BR>\n" );
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