Conversions with currency On December 13, 2007, one South African rand was worth 0.15 U. S. dollars.
Х
(a) On that date, how many rand was 38.39 dollars worth?
Round your answer to the nearest hundredth of a rand.
O
rand
(b) On that date, how many dollars was 178.98 rand worth?
Round your answer to the nearest hundredth of a dollar.
dollars

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