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1-La tabla presentada a continuacin presenta la distribucin de personas por lmites de edad. Utilizando las frmulas de los datos agrupados para encontrar la Varianza

1-La tabla presentada a continuacin presenta la distribucin de personas por lmites de edad. Utilizando las frmulas de los datos agrupados para encontrar la Varianza y la Desviacin Estndar de las edades, completar la tabla a continuacin y luego, calcula la Varianza y Desviacin Estndar:

Limites

f

X

(Punto Medio)

(x)(f)

(X-Media)

(X-Media)2

(X-Media)2 f

10-14

5

15-19

8

20- 24

12

25-29

7

30-34

4

2-Determine la Media, Moda y Mediana para:

  • 3, 8, 10, 14, 14, 9, 10, 12, 21, 5, 13, 11, 10.
  • 232, 212, 151, 325, 421, 132, 236, 145, 145, 145.
  • 4.8, 5.1, 5.9, 4.88, 3.24, 5.11, 6.12, 5.03, 4.44.

3-Utilizando la siguiente tabla de datos agrupados determine la Moda, Mediana, Media, Q1 y Q3 .

Clase

f

F

1-10

7

11-20

12

21-30

22

31-40

14

41-50

9

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