Which measure of spread is most affected by outliers? At [OR (I percentiles B standard deation [1 range 1 pain The standard deviation A. is in the same units as the mean. B cannot be negative. C is based on squared deviations item the mean. D All of these are correct. Determine the mean age for this set of data. Age (years) 12-14 14-16 16-18 18-20 Frequency 3 7 18 6 A 8.5 years C 16.6 years B 16 years 564 years OA O OC OD 1 poir Which measure tells you the average distance from the mean? A z-score C variation B standard deviation D interquartile range A B O c ODWhat is the median of the sample 3, 4, 7, 4, 9, 4, 5, 6, 7, 10? A 4 C 5.9 B 5.5 D 7 O B O C O D