TatianaKaplan TatianaKaplan 10-02-2017 Mathematics contestada Find each mean. 56; 59; 51; 63; 68; 57; 52 146; 153; 117; 148 200; 141; 257; 199 912; 738; 420 15; 9; 7; 6; 8; 11; 4; 9; 6; 7 19; 27; 34; 18; 23