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TERCER SEMESTRE
Clases | l.inf | l.sup | Frec. | marca de clase | Frec. Acumulada | Frec. Relativa | Grados | Mi.Fi | Fi-Ẋ | (Mi-Ẋ)₂.Fi |
A | 5.8 | 6.2 | 6 | 6 | 6 | 12% | 43.2° | 36 | 1.33 |10.61 |
B | 6.3 | 6.7 | 9 | 6.5 | 15 | 18% | 64.8° | 58.5 | 1.67 | 6.2 |
C | 6.8 | 7.2 | 11 | 7 | 25 | 20% | 72° | 70 | 2.7 | 1.08 |
D | 7.3 | 7.7 | 9 | 7.5 | 35 | 20% | 72° | 75 | 2.7 | 0.28 |
E| 7.8 | 8.2 | 5 | 8 | 40 | 10% | 36° | 40 | 2.33 | 2.24 |
F | 8.3 | 8.7 | 6 | 8.5 | 46 | 12% | 43.2° | 51 | 1.33 | 8.21 |
G | 8.8 | 9.2 | 4 | 9 | 50 | 8% | 28.8° | 36 | 3.33 | 11.15 |
H | 9.3 |9.7 | 0 | 9.5 | 50 | 0% | 0° | 0 | 7.33 | 0 |
| | | N=50 | | | Total=100% | 360° | 366.5 | 22.72 | 39.77 |

N. clases: 50 = 7.07 = 8 Intr. Exacto: 9.2 – 5.8 =0.425 = 0.50Intervalo de Variación: 0.10

Rango: 3.4 Promedio: 6.84 Media Ẋ: 366.5 / 50 = 7.33Posición de la mediana: 50 + 1 / 2 =25.5 → Clase E Clase modal: Clase C

Mediana: 7.8 + (50/2) – 35 (0.4) =7 Moda: 6.8 + 11 – 9 (0.4) = 7
5 2(11) – 9 – 9DM: 22.72 / 50 = 0.4544 S: 39.77 / 50 = 0.7954 S: 0.7954 = 0.8918

PRIMER SEMESTRE
Clases |l.inf | l.sup | Frec. | marca de clase | Frec. Acumulada | Frec. Relativa | Grados | Mi.Fi | Fi-Ẋ | (Mi-Ẋ) .Fi |
A | 3.5 | 4.1 | 1 | 3.8 | 1 | 2% | 7.2° | 3.8 | 5.586 | 7.76 |
B | 4.2 | 4.8 | 0 |4.5 | 1 | 0% | 0° | 0 | 6.586 | 0 |
C | 4.9 | 5.5 | 7 | 5.2 | 8 | 14% | 50.4° | 36.4 | 0.414 | 13.44 |
D | 5.6 | 6.2 | 12 | 5.9 | 20 | 24% | 86.4° | 70.8 | 5.414 | 5.64 |
E | 6.3 | 6.9 | 11 |...