CHALLENGE ACTIVITY I 2.3.1: Measures of variability. 4022161927122 qx32qy7 Jump to level 1 A sample of 3 measurements are taken and recorded: m = 9, y = 6 and z = 7 The sample mean is: E = Fill in the table below. 2 (av5)2+(y5)2+(25)2 _ 3 = 2 2 2 2 s = Hasw) +(y22> +(zw) = Next m+y+z _ 3 _ 7.33 :Ex: 53.. :Ex: 53.. m mwmml (j