Seudónimo Seudónimo 11-04-2017 Mathematics contestada PLZ HELP NEED HELP FAST 20 POINTSThese data show the age in years of 9 members of the youth orchestra. 12 14 16 17.5 10 18 15 15.5 19 What is the IQR (interquartile range) for these data? A 4.75 B 9.00 C 15.50 D 17.75