How do i Determine the strength of a scatter plot?

Question

e.mccormick · Answer

You mean the strength of he correleation? http://forrest.psych.unc.edu/research/vista-frames/help/lecturenotes/lecture11/overview.html

anonymous · Answer

no a scatter plot

e.mccormick · Answer

Did you look at the link?  It is on scatter plots.  A scatter plot looks at possible correlation of two types numbers.  Typically called x and y.

anonymous · Answer

no sorry. ok

anonymous · Answer

Thank you.

e.mccormick · Answer

The correlation can be strong, weak, or none.  If strong or weak, it is either positive or negative.  Basically, it is the slope of the line of best fit for the positive or negative and how close it is to a real line for the strong or weak.

anonymous · Answer

ok thank you

e.mccormick · Answer

If things fall really clost to a line and it is sloped up:
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That is strong and positive.

e.mccormick · Answer

Now, if the dots were all over, it would be none.

e.mccormick · Answer

As for the numeric calculation of how strong, that is the standard deviation formula.

anonymous · Answer

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What would this be?