y x1 x272 67 7878 95 7685 56 6052 74 6558 67 7856 58 8954 65 7888 79 6763 91 8765 73 6772 78 7566 76 7376 74 7989 58 7762 60 9081 73 6988 90 8178 83 7995 89 8287 57 7877 68 8167 61 8065 77 7788 59 7550 67 7677 79 7466 80 6792 65 8183 81 7878 82 69

No. y x1 x2 X1Y X2Y72 67 78 1 65 60 71 3900 461578 95 76 2 71 88 69 6248 489985 56 60 3 78 49 53 3822 413452 74 65 4 45 67 58 3015 261058 67 78 5 51 60 71 3060 362156 58 89 6 49 51 82 2499 401854 65 78 7 47 58 71 2726 333788 79 67 8 81 72 60 5832 486063 91 87 9 56 84 80 4704 448065 73 67 10 58 66 60 3828 348072 78 75 11 65 71 68 4615 442066 76 73 12 59 69 66 4071 389476 74 79 13 69 67 72 4623 496889 58 77 14 82 51 70 4182 574062 60 90 15 55 53 83 2915 456581 73 69 16 74 66 62 4884 458888 90 81 17 81 83 74 6723 599478 83 79 18 71 76 72 5396 511295 89 82 19 88 82 75 7216 660087 57 78 20 80 50 71 4000 568077 68 81 21 70 61 74 4270 518067 61 80 22 60 54 73 3240 438065 77 77 23 58 70 70 4060 406088 59 75 24 81 52 68 4212 550850 67 76 25 43 60 69 2580 296777 79 74 26 70 72 67 5040 469066 80 67 27 59 73 60 4307 354092 65 81 28 85 58 74 4930 629083 81 78 29 76 74 71 5624 539678 82 69 30 71 75 62 5325 4402

1998 1972 2076 131847 138028y x1 x2 X1Y X2Y

938.4473 136843.655201.2

3992004 77011.1133066.8

4715.2 4631.256171.528

X1^2 Y^2 X1.X2 Y^2 X2^23600 4225 4260 4225 50417744 5041 6072 5041 47612401 6084 2597 6084 28094489 2025 3886 2025 33643600 2601 4260 2601 50412601 2401 4182 2401 67243364 2209 4118 2209 50415184 6561 4320 6561 36007056 3136 6720 3136 64004356 3364 3960 3364 36005041 4225 4828 4225 46244761 3481 4554 3481 43564489 4761 4824 4761 51842601 6724 3570 6724 49002809 3025 4399 3025 68894356 5476 4092 5476 38446889 6561 6142 6561 54765776 5041 5472 5041 51846724 7744 6150 7744 5625 191236162682500 6400 3550 6400 5041 188253628643721 4900 4514 4900 5476 2982534042916 3600 3942 3600 53294900 3364 4900 3364 4900 193140590402704 6561 3536 6561 4624 186016865443600 1849 4140 1849 4761 7123724965184 4900 4824 4900 44895329 3481 4380 3481 3600 0.41867619213364 7225 4292 7225 54765476 5776 5254 5776 5041 183798084805625 5041 4650 5041 3844 17982348636

133160 137782 136388 137782 145044 397459844X1^2 Y^2 X1.X2 Y^2 X2^2

1931405904025.9085513 0.040424 18601686544

1172.371 825.6295 320.459809 0.080848 712372496

14.0908 275779944 0.55793822231158.28 9192664.8

0.469693 -9054636.855201.2 132212.2968477011.1 0.959575974