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Imagine collecting and graphing a data set which compares the birth weight of US babies (in pounds) to their lengths (in inches).
Imagine collecting and graphing a data set which compares the birth weight of US babies (in pounds) to their lengths (in inches). If the data points fall along a relatively straight line, rising upward as the birth weights increase, we would consider the data to have
no correlation at all.
a fairly strong positive correlation.
a fairly weak negative correlation.
a fairly weak positive correlation.