document.write( "Question 1127760: ***Corrected from previous request ***\r
\n" ); document.write( "\n" ); document.write( "In need of assistance please, as I am completely lost.\r
\n" ); document.write( "\n" ); document.write( "I was hoping to receive help understanding the following question:\r
\n" ); document.write( "\n" ); document.write( "A regression was run to determine whether there is a relationship between hours of TV watched per day(x)and number of sit-ups a person can do (y). The results of the regression are given below. Use this to predict the number of sit-ups a person who watches 11 hours of TV can do.\r
\n" ); document.write( "\n" ); document.write( "y=ax+b
\n" ); document.write( "a=-1.341
\n" ); document.write( "b=32.234
\n" ); document.write( "r=-0.896\r
\n" ); document.write( "\n" ); document.write( "What is really throwing me off is where \"r\" comes into play.\r
\n" ); document.write( "\n" ); document.write( "I am not simply seeking an answer, instead I am asking for your knowledge on how to understand this type of equation, and how to solve something such as this.\r
\n" ); document.write( "\n" ); document.write( "Thank you for your time!
\n" ); document.write( "

Algebra.Com's Answer #744352 by addingup(3677)\"\" \"About 
You can put this solution on YOUR website!
y' = 1.341 + 32.234
\n" ); document.write( "y' at x = 11 is
\n" ); document.write( "y' = 1.341(11) + 32.234
\n" ); document.write( "= 46.985, you can round it off to 47
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