In a certain town, 42% of voters favor a given ballot measure. For groups of 30 voters, find the

Mathematics

1 answer:

alex41 [277]3 years ago

6 0

Answer:

7.3 voters

Step-by-step explanation:

This scenario follows a binomial distribution with the probability of success (voting in favor of the ballot) p =0.42, and the probability of failure (voting against the ballot), p-1 = 0.58. If the number of events is n=30. The variance is given by:

$V= n*p*(1-p)\\V= 30*0.42*(1-0.42)\\V=7.3\ voters$

The variance for the number who favor the measure is 7.3 voters.

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choli [55]

$\huge\text{Hey there!}$

$\huge\textsf{What is addition \& subtraction?}$

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$\huge\textbf{Random notes}$

$\star\large\textbf{ Usually, you start working with addition when you're in}\\\large\textbf{pre-kindergarten (pre-k also known as head-start)}\\\\\star\large\textbf{ When, you're adding you are going upward.}\\\\\star\large\textbf{ Addition sometimes come after you learn how to count}\\\large\textbf{the basic numbers and so forth because adding never}\\\large\textbf{ends if you really think about.}$

$\huge\textbf{Example:}$

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$\huge\textbf{What is subtraction?}$

$\bullet\large\textbf{ Well, subtraction simply means you're taking away. Often}\\\large\textbf{people call it take aways.}$

$\huge\textbf{Random notes:}$

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