Activity No. 5 Measures of Variation (Grouped Data) Given the Class Interval and frequency. Complete the table and solve properly the a) Range b) MD c) Variance d) Standard Deviation Class Interval X fx / x - x/ f/ x - x/ 1/x-x/] 220-227 212-219 204-211 196-203 15 188-195 10 180-187 7 n= 47 Ix= Ifx= EX'= Inx2= DX-x/ = If/x-x/= El / x - x/ 3= Solve the following: Range Mean Deviation Variance (use formula a and b Standard Deviation (use formula a and b)