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Asignación 3: Medidas de Tendencia Central y Dispersión

1. La tabla adjunta describe los asesinatos por mes que ocurrieron en Puerto Rico durante el año 2009

Enero

Febrero

Marzo

Abril

Mayo

Junio

Julio

Agosto

Sept.

Octubre

Nov.

Dic.

56

80

75

63

91

79

63

75

84

84

85

59

 Fuente: tendenciaspr.com

Calcule las siguientes estadísticas:

a. Promedio

b. Mediana

c. Moda

d. Varianza

e. Desviación estándar

2. La siguiente tabla describe el promedio de asesinatos del 2000-05 por municipio. 

Calcule las siguientes estadísticas:

a. Promedio

b. Mediana

c. Moda

d. Varianza

e. Desviación estándar

IMPORTANTE: No incluya el promedio de Puerto Rico.

 

 

 

 

3. Un fabricante de cosméticos adquirió una máquina para llenar botellas de perfume de 3 onzas. Para probar la precisión del volumen depositado en cada botella, hizo una corrida de prueba con 18 recipientes. Los resultados fueron los siguientes:

3.02

2.89

2.92

2.90

2.90

2.96

2.95

2.99

2.93

3.01

2.97

2.95

2.84

2.94

2.97

2.99

2.94

2.97

Calcule las siguientes estadísticas:

a. Promedio

b. Mediana

c. Moda

d. Varianza

e. Desviación estándar

4. Los siguientes datos representan el total de asesinatos en Puerto Rico del 1989 al 2009.

Año

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

1996

1995

1994

1993

1992

1991

1990

1989

Total

894

807

728

739

766

793

787

774

747

695

593

652

723

868

864

995

954

864

817

600

467

Fuente: tendenciaspr.com

Calcule las siguientes estadísticas:

a. Promedio

b. Mediana

c. Moda

d. Varianza

e. Desviación estándar

 

 

 

 

 

I need step by step no just the answer. 

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