AVEARAGE OR MEAN DEVIATION 1. The following data are the ages of the residents of Barangay A in Tarlac Province. Find the mean deviation of their respective ages. x Class mark, ∙ ⃒ − ⃒̅ ⃒ − ⃒̅ 33 – 39 10 26 – 32 5 19 – 25 12 12 – 18 8 5 – 11 15 Mean Deviation: __________________​