For each of the 30 students in her math class, Ms. Granby recorded the amount of time spent on a homework assignment and the number of problems remaining to be completed. She calculated a linear model for these data using time as the independent variable, and calculated the correlation coefficient to be - 0.78. What does this coefficient say about the relationship between the variables?
There is no linear association between time spent and number of problems remaining
d. There is a strong positive linear association between time spent and number of problems remaining.
There is a strong negative linear association between time spent and number of problems remaining.
C.
D
There is a weak negative linear association between time spent and number of problems remaining.