Refer to Exercise 4.83. Youve now learned that the two
sample standard deviations are 16 and 12. a. Calculate the coefficient of
correlation. What does this statistic tell you about the relationship between
the two variables? b. Calculate the coefficient of determination and describe
what this says about the relationship between the two variables.
The covariance of two variables has been calculated to be
_150. What does the statistic tell you about the two variables?
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