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If the homes are representative of the community of 100,000 homes that the company serves about how many homes would you predict have 4 or more telephones?

Respuesta :

MrRoyal

Answer:

8000 homes

Step-by-step explanation:

Given

See attached for result of the survey

Required

Number of homes to have 4 or more telephones in 100000

First, we calculate the proportion of homes with 4 or more telephones

[tex]Pr = \frac{4\ or\ More}{Total}[/tex]

So, we have:

[tex]Pr = \frac{12}{7+33+56+42+12}[/tex]

[tex]Pr = \frac{12}{150}[/tex]

Multiply this by 100000 to get the predicted value

[tex]n = Pr *100000[/tex]

[tex]n = \frac{12}{150} * 100000[/tex]

[tex]n = \frac{1200000}{150}[/tex]

[tex]n = 8000[/tex]

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