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Q&A #3699


Scatter plots

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From: Linda Watts
To: Teacher2Teacher Service
Date: Apr 13, 2000 at 20:06:25
Subject: Scatter plots

My daughter is in the 8th grade and is trying to understand scatter plots,
how data would read on the graph showing a positive, a negative, or no
relationship determination? Also, How do you read the graphs to show a
correlation between variables?
 i.e.,
outside temperature and cost of air conditioning
number of minutes a candle burns and the candle's height

I cannot draw a graph here, but if the points were to be scattered over
the lower left quadrant of the graph and scatter across in an upward
movement to enter the upper right quadrant, how would you determine the
correlation of the variables?

This is a child who is very intent on 'getting the answer' and not
understanding. I need resources to help her to understand when she does
not have a good rapport with her teachers.  Help!

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