contestada

In a certain town, 20 percent of voters are in favor of a given ballot measure and 80 percent are opposed. For groups of 120 voters, find the mean for the number who oppose the measure.

Respuesta :

maria254
120 voters =100%
                 ?  80%
120*80/100
=96 voters

Answer:

The mean for the number who oppose the measure is 96.  

Step-by-step explanation:

We are given the following information in the question:

Percentage of voters who are in favor of a given ballot measure = 20%

Percentage of voters who are against  a given ballot measure = 80%

Number of voters in a group = 120

Formula:

[tex]\text{Mean} = np\\\text{where n is the number of observations and p s the probability of sucess}[/tex]

In this case, n = 120 and p = probability of success = Percentage of voters who are against  a given ballot measure = 80%

Mean =

[tex]120\times 80\% \\\\120\times \displaystyle\frac{80}{100} = 96[/tex]

Hence, the mean for the number who oppose the measure is 96.

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