positive, negative or no correlation  TOPIC_SOLVED

Geometric formulae, word problems, theorems and proofs, etc.

positive, negative or no correlation

Postby tatiyana on Tue Sep 22, 2009 9:56 pm

which kind of correlation does the following have?
the width of a rectangle with an area of 10 inches sq. and the length of the rectangle
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Postby stapel_eliz on Wed Sep 23, 2009 12:52 am

Plug the given number into the formula for the area A of a rectangle with width w and length L.

Solve for one of the variables.

Graph the resulting equation, and review the way that your book has defined "correlation". :wink:
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Re: positive, negative or no correlation  TOPIC_SOLVED

Postby abhi9 on Tue Oct 06, 2009 7:59 am

width * length = area of 10 sq. inches ( a constant )

There is a "negative correlation" between length and width ( if you increase one of them, you have to decrease the other one so that their product remains 10. )
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