Ngày tải lên :
24/09/2012, 17:24
... 13961000 = 142 45,92 (ngàn đồng) x = 980 ∑f ∑ x f = 11826000 = 142 48,193 = (ngàn đồng) x 830 f x = 1 1 01 0 0 x x x ∗x x x = 01 01 1 347 2,3163 1 347 2,3163 142 45,92 = ∗ 142 48,193 142 45,92 142 48,193 94, 55% ... pq 1 pq 0 pq q 145 00 300 13990 350 96 ,48 (%) 116,67 48 96500 43 50000 5075000 140 00 250 12850 300 91,78 120 3855000 3500000 42 00000 142 00 280 1 348 9 330 94, 99 117,85 44 51370 3976000 46 86000 13202870 ... 142 48,193 142 45,92 142 48,193 94, 55% = 94, 57% 99,98% STĐ= x1 − x0 = ( x1 − x01) + ( x01 − x0) 1 347 2,3163 – 142 48,193 = ( 1 347 2,3163 – 142 45,92 ) + ( 142 45,92 – 142 48,193) - 775,8767 = - 773,6037 -...