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QUESTION IMAGE

a residential community was polling households to find out whether they…

Question

a residential community was polling households to find out whether they wanted to get their tv signal from a satellite or cable. the results are shown in the venn diagram. what are the values of a and b in the relative frequency table for the survey results? round answers to the nearest percent. a = 38%, b = 3% a = 93%, b = 19% a = 82%, b = 3% a = 38%, b = 50%

Explanation:

Step1: Calcular el total de encuestas

Sumamos todos los valores del diagrama de Venn: \(55 + 12+75 + 4=146\)

Step2: Calcular el valor de \(a\)

\(a\) es la frecuencia relativa de "Satellite" y "Not Cable". El número de personas que son "Satellite" y "Not Cable" es \(55\).
La fórmula para la frecuencia relativa es \(\frac{\text{valor}}{\text{total}}\times100\).
Así, \(a=\frac{55}{146}\times 100\approx 38\%\)

Step3: Calcular el valor de \(b\)

\(b\) es la frecuencia relativa de "Not Satellite" y "Not Cable". El número de personas que son "Not Satellite" y "Not Cable" es \(4\).
Usando la misma fórmula: \(b = \frac{4}{146}\times100\approx3\%\)

Answer:

\(a = 38\%, b=3\%\)