Estadistica.xlsx

TABLA DE VALORES

TOTAL

X

Y 88 70 65 50 60 80 68 49 40

95 51 49 27 42 52 67 48 46

XY 8,360 3,570 3,185 1,350 2,520 4,160 4,556 2,352 1,840

570

477

31,893

X ^2 7,744 4,900 4,225 2,500 3,600 6,400 4,624 2,401 1,600

Y ^2 9,025 2,601 2,401 729 1,764 2,704 4,489 2,304 2,116

Yc=-3.28+0.98x

37,994

28,133

477.78

75.04 59.02 54.57 41.22 50.12 67.92 57.24 40.33 32.32

Y-Yc (Y-Yc) ^2 19.96 398.4 -8.02 64.32 -5.57 31.02 -14.22 202.21 -8.12 65.93 -15.92 253.45 9.76 95.26 7.67 58.83 13.68 187.14 -0.78

Yc-Ӯ (Yc-Ӯ) ^2 22.04 485.76 6.02 36.24 1.57 2.46 -11.78 138.77 -2.88 8.29 14.92 222.61 4.24 17.98 -12.67 160.52 -20.68 427.66

1,356.56

(Y-Ӯ) 42 -2 -4 -26 -11 -1 14 -5 -7

1,500.29

100 90 80 70 60 50 40 30 20 10 0 30

40

50

60

70

Calificaciones en Economia

80

90

(Y-Ӯ) ^2 1.76 4 16 676 121 1 196 25 49 2,852

Diagrama de Esparcimiento

Calificaciones en Estadistca

Est. A B C D E F G H I

100