d) How frequently the various expenditures occurred in the data set 9. Which one of the following is a FALSE statement about a standardized value (z-score)? a) It represents how many standard deviations an observation lies from the mean. b) It represents in which direction an observation lies from the mean. c) It is measured in the same units as the variable. d) It is calculated Z = (X - P)/ 10. In aa left skewed distribution, which of the following is true? a) The mean is larger than the median. The mean is smaller than median. C The mean and median are approximately equal. It is impossible to compare the mean and median for these data. Page 6