... 0 .2 1 20 F1= 20 2 21 F 2 = 20 + 0 .2 ( 20 20 ) = 20 3 22 F3= 20 + 0 .2 ( 21 20 ) = 20 .2 4 23 F4= 20 .2 + 0 .2 ( 22 20 .2 )= 20 .565 24 F5= 20 .56 + 0 .2 ( 23 20 .56 )= 21 .0486 25 F6= 21 .048 ... 0 ,2 AD Ft (α = 0,4) AD1 2 34567 20 21 22 23 24 25 26 20 20 20 ,2 20,56 21 ,048 21 ,638 22 ,31 11,8 2, 44 2, 9 52 3,3 62 3,69 20 20 20 ,4 21 ,04 21 , 824 22 ,694 23 ,616-11,61.96 2, 176 2, 306 2, 384- ∑ ... sai số1 22 2 21 3 25 (22 + 21 ) /2 = 21 .5 3,5 3,54 27 (21 + 25 ) /2 = 23 4 45 35 (25 + 27 ) /2 = 26 9 96 29 (27 + 35) /2 = 31 -2 27 33 (35 + 29 ) /2 = 32 1 18 37 (29 + 33) /2 = 31...