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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. tv signal satellite cable 55 12 75 4

Explanation:

Step1: Calcular el total de encuestados

Sumamos todos los valores en el diagrama de Venn: $55 + 12+75 + 4=146$.

Step2: Calcular el valor de a

La cantidad de personas que prefieren solo satélite es 55. La frecuencia relativa $a$ se calcula como $\frac{55}{146}\times100\%\approx38\%$.

Step3: Calcular el valor de b

La cantidad de personas que no prefieren satélite ni cable es 4. La frecuencia relativa $b$ se calcula como $\frac{4}{146}\times100\%\approx3\%$.

Answer:

a = 38%, b = 3%