3. Find the mean of each group of numbers:
27, 27, 27, 27, 27 _______________________________________
11, 17, 13, 16, 18 ____________________________________
52, 61, 59, 63, 57 __________________________________
36, 48, 52, 37, 50, 46, 38, 51 ______________________________________
79, 89, 87, 78, 88, 89
1.1, 1.3, 1.2, .4
26.1, 23.4, 28.6, 20.4, 18.0, 21.1 ____________________________________________
63.02, 48.12, 52.35, 60.03______________________________________________-
3, 2 ¾, 2 ¼ ____________________________________________