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1.  Data set A has a correlation coefficient of 0.7. Data set B has a correlation coefficient of -0.9. Which data set has a stronger linear correlation?

a.  A

b.  B

c.  They both have the same linear correlation.

d.  It's impossible to tell from the given information.

2.  A data set has a correlation coefficient of -0.9. When we plug x = 3, we get \(\hat{y} = 10.\) If we plug in x = 5, we will find that

a.  \(\hat{y} > 10.\)

b.  \(\hat{y} < 10.\)

c.  \(\hat{y} = 10.\)