Tentukan devisi rata* data 2,3,6,8,11

jawab

xi = 2, 3 , 6, 8 , 11
n = 5
∑xi= 30
X= 30/5 = 6

deviasi rata = Sr
Sr = {|2-6| + |3-6| + |6-6| + |8-6| + |11-6| }/(5)
Sr = (4 +3+0+2+3)/(5)
Sr = 12/5
Sr = 2,4