... (i=1,n)n : Các loại bậc thợ.16 ,2 236 521 01 323 23 6x252x310x413x5x 623 H 20 00=++++++++=95 ,2 225 2704 820 35 22 5x 227 0x348x 420 x5x635H 20 01=++++++++=95 ,2 1353 926 33547135x2392x363x435x5x647H 20 02 =++++++++=Nhận ... nam/CNSX==d48,6 02. 306.67 27 366506 .21 6.634 .24 W 20 00 nam/CNSX bq=+=d79,535 .22 7x254,09x7,587 29 4.484.881 .25 W 20 01 g==d58, 525 .173x254,09587 29 4.484.881 .25 W 20 01 N==d64,114.091.44587 29 4.484.881 .25 W 20 01 ... 5.5Bậc 4 22 13.75 27 16.8 35 15.9 5 22 .7 8 29 .6Bậc 3 25 22 .7 30 18.75 46 20 .9 5 20 16 53.3Bậc 2 23 20 .9 37 23 .1 65 29 .54 14 60.8 28 75.6Bậc thợbình quân3.54 3.57 3.97Cách tính: bậc thợ...