Tell whether the sequence is arithmetic. if it is, identify the common difference. -7,-3, 1,5 a) not arithmetic b) arithmetic, common difference is 4 c) arithmetic, common difference is 9 d) arithmetic, common difference is 7 tell whether the sequence is arithmetic. if it is, identify the common difference.-9,-17, -26,-33 a) not arithmetic b) arithmetic, common difference is 8 c) arithmetic, common difference is 9 d) arithmetic, common difference is 7 tell whether the sequence is arithmetic. if it is, identify the common difference. 19,8,-3,-14 a) not arithmetic b) arithmetic, common difference is -11 c) arithmetic, common difference is 5 d) arithmetic, common difference is 17

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