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1) La siguiente tabla presenta la distribucin de frecuencias del nmero de kilmetros recorridos hasta que se produjo la primera falla grave de motor en

1) La siguiente tabla presenta la distribucin de frecuencias del nmero de

kilmetros recorridos hasta que se produjo la primera falla grave de motor en cierto modelo de vehculo.

Distancia recorrida

Frecuencia
0 - 20 8
20 - 40 13
40 - 60 18
60 - 80 27
80 - 100 36
100 - 120 48
120 - 140 35
140 - 160 18
160 - 180 4
180 - 200 4

Sealar en el histograma la regin correspondiente a vehculos que no han sufrido averas serias en los 100,000 kilmetros. Qu proporcin

representa?

c) Hallar aproximadamente el valor del kilometraje para el que han fallado la mitad de los vehculos.

d) Qu forma tiene la distribucin (esta sesgada)?

e) Indica la distribucin de porcentajes

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