Intervalos estadistica

EJERCICIOS

Ejercicios con variables cualitativos

1) Distribución de las gaseosas, vendidas en el quiosco de geografía según las marcas:

crush, crush, inca cola, crush, crush crush kr, kr, inca cola, crush, crush, inca cola, kr, kr, inca cola, crush, crush, inca cola, kr, kr, inca cola, crush, crush, inca cola, kr, kr, inca cola, crush, crush crush inca cola, crush, kr, kr, incacola, crush, inca cola, crush, crush crush, kr, kr, inca cola, crush, inca cola, crush, kr, kr, inca cola, crush, inca cola, crush, kr, kr, inca cola, crush, crush, crush, inca cola, kr, kr, inca cola, crush, crush, inca cola, kr, kr, inca cola, crush, crush, inca cola, kr, kr, inca cola, crush, crush, inca cola, kr, kr, inca cola, inca cola, crush, kr, kr, inca cola, crush, inca cola, crush, kr,kr, inca cola, crush, inca cola, crush, crush crush crush, kr, kr, inca cola, crush, inca cola, crush, kr, crush, crush crush kr, crush, crush crush inca cola, crush, kr, kr, inca cola, crush,crush inca cola, crush, , inca cola, crush, crush inca cola, crush , inca cola, crush,crush inca cola, crush, inca cola, crush, crush crush crush,crush inca cola, crush, , inca cola, crush,crush incacola, crush, crush, crush.
X= cantidad de galletas=150

Y=Marcas de galletas: INCA COLA; CRUSH; KR.

|X |f |h% |
|Nombre de la gaseosa |cantidad |porcentaje |
|Inca cola |50 |33,33333333 |
|crush |70 |46,66666667|
|kr |30 |20 |
|total |150 |100  |

Grafico:

[pic]

INTERPRETACION: h1= DE 150 GASEOSAS EL 33,3% SON GASEOSA INCA COLA

F2= DE 150 GASEOSAS 70 SON CRUSH.

2) Venta de DVD en una tienda de música:Csi, ncis, lost, lost, ncis, las vegas, Csi, ncis, lost, lost, las vegas, ncis, friends, las vegas,csi, , ncis, lost, lost, ncis, las vegas, friends, csi, las vegas,friends, , ncis, lost, las vegas,lost , csi, friends, ncis, lost, lost, ncis, friends, friends, las vegas, ncis, ncis, friends, csi, Csi,las vegas, ncis, lost, lost, ncis, csi, ncis, lost, lost, ncis, las vegas,friends, csi,friends, Csi, las vegas, ncis, lost, lost, ncis, csi, friends, ncis, lost, las vegas, lost, las vegas, ncis, las vegas, friends, csi, Csi, ncis, lost, las vegas, lost, ncis, friends, ncis, lost, lost, ncis, csi, Csi,, lost, las vegas, lost, ncis, csi, friends, ncis, las vegas,lost, lost, ncis, csi, ncis, lost, lost, ncis, csi, Csi, ncis, lost, lost, ncis, friends, las vegas, csi, friends, lasvegas, las vegas, las vegas.

X=cantidad de DVD´S = 115

Y=series: CSI; NCIS; FRIEND´S; LOST; LAS VEGAS.

|x |f |h% |
|CSI |20 |17,39130435 |
|NCIS |30 |26,08695652 |
|FRIENDS |15 |13,04347826 |
|LOST |30|26,08695652 |
|LAS VEGAS |20 |17,39130435 |
|total |115 |100 |

Grafico:

[pic]
INTERPRETACION: f2= DE 115 DVD VENDIDOS 30 SON DE NCIS.
h2= de 115 EL 26% DE DVD VENDIDOS ES DE NCIS.

3) ALUMNOS DE LA ESCUELA DE GEOGRAFIA SEGÚN EL GENERODE MUSICA QUE PREFIERAN:

X= Cantidades de alumnos = 500

Y= GENERO: BALADAS; ROCK; CUMBIA.

|x |f |h% |
|baladas |300 |60 |
|rock |120 |24 |
|cumbia |80 |16 |...