Suppose the correlation between x and y is 0.73. (a) Does the scatter diagram slope up or
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Suppose the correlation between x and y is 0.73.
(a) Does the scatter diagram slope up or down?
(b) If you multiply all the values of y by -1, would the new scatter diagram slope up or down?
(c) If you multiply all the values of y by -1, what happens to the correlation? PL968
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