correlation
Message posted by sanja on June 16, 2000 at 12:00 AM (ET)

what is the significance and purpose of determining positive and negative correlation between variables ?

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Re: correlation
Message posted by Stuart Jones on June 23, 2000 at 12:00 AM (ET)

By determining whether correlation is positive or negative you can determine whether there is any relationship between the sets of data.

Positive correlation says that as one set of data increases, so does the other.

Negative correlation means that as one set of data increases, the other decreases.

This is extremely useful in estimating future values