Which of the following data sets is best described by a linear model? None of the other answers are correct
O (6,1),(4,-1),(3,-3),(2,-5)}
O (5,1),(4,2), (3,4),(2,8)}
O {(5,12),(4,6),(3,3), (2,1.5)}
O {(5,1),(4,0),(3,1),(2,4)}

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average