The arithmetic mean of the following data is __________. 23, 17, 20, 19, 21 SSC SSC CGL Tier 2 Easy Tables & Graphs MCQ Question The arithmetic mean of the following data is __________. 23, 17, 20, 19, 21 Options A. 20 B. 19 C. 23 D. 21 arithmetic meanaveragestatisticsbasic math