classes frequencia pto medio media varianza
15 20 5 5 17.5 87.5 -20.8035714
20 30 35 40 25 875 -13.3035714
30 40 60 100 35 2100 -3.3035714
40 60 30 130 50 1500 11.6964286
60 100 10 140 80 800 41.6964286
70 5362.5
35 38.3035714
105
notas notas
28 3.5 -2.79375 7.80503906
36 4.5 -1.79375 3.21753906
40 5 -1.29375 1.67378906
40.8 5.1 -1.19375 1.42503906
44.8 5.6 -0.69375 0.48128906
45.6 5.7 -0.59375 0.35253906
46.4 5.8 -0.49375 0.24378906
48 6 -0.29375 0.08628906
48.8 6.1 -0.19375 0.03753906
52.8 6.6 0.30625 0.09378906
55.2 6.9 0.60625 0.36753906
56.8 7.1 0.80625 0.65003906
57.6 7.2 0.90625 0.82128906
59.2 7.4 1.10625 1.22378906
68 8.5 2.20625 4.86753906
77.6 9.7 3.40625 11.6025391
100.7 34.949375
media 6.29375
desviacio est
2.32995833
mediana 48.4 1.5264201
6.05
