SAT College

In a poll conducted before a Massachusetts city's mayoral election, 134 of 420 randomly chosen likely voters indicated that they planned to vote for the Democratic candidate.

Compute a sample statistic from these data. Report your answer with three decimal places.

Answers

Answer 1

The sample statistic for the proportion of the Massachusetts city residents that plan to vote for the Democratic candidate is:

p = 0.319.

What is a proportion?

A proportion is a fraction of a total amount, and is given by the desired amount of the sample, that is, divided the number of successes in the sample, divided by the size of the sample.

In this problem, we want to find the sample statistic for the proportion of the Massachusetts city residents that plan to vote for the Democratic candidate, hence we need to consider that:

The number of successes on the sample is of 134, which is the number of residents that plan to vote for the Democratic candidate.The sample size is of 420.

Hence the estimate for the sample statistic is given as follows:

p = 134/420 = 0.319.

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Related Questions

Explain regulatory requirementsExplain regulatory requirements for continuing professional development for Certificate of Registration holders: for continuing professional development for Certificate of Registration holders:real estate

Answers

The regulatory requirements for continuing professional development for Certificate of Registration holders in real estate differ from location to location. Here is an example of what obtains in the US.

What are the regulatory requirements for continuing professional development for Certificate of Registration holders in real estate in the US?

According to MCKissock Learning, the Real Estate Professional must complete the following:

New York Ethical Business Practices and Legal Matters (3.5 hrs)New York Fair Housing & Agency Law (4 hrs)Implicit Bias Awareness and Cultural Competency (4 hrs)Ethics in the Age of Disruption (3 hrs)Handling Multiple Offers (2 hrs)

It is to be noted that Continuing education classes allow you to expand your knowledge and abilities in a certain field. Local school districts, colleges, and universities provide continuing education classes to individuals in the community. Courses in anything from digital design to philosophy to visual literacy are available.

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what is a properly of matter give me 5 examples

Answers

Explanation:

Density, colour, hardness, melting and boiling points, and electrical conductivity are all examples of physical properties.

Log11= Log(x-2) + Log5

Answers

Answer:

x = 4.2

Explanation:

log 11 = log(x - 2) + log(5)

log 11 = log(5x - 10)

Taking antilog,

11 = 5x - 10

5x = 21

x = 4.2

Information and knowledge: Which one is obtained from the other?

Answers

Answer:

Information is obtained from knowledge because you can utilize your current knowledge to learn new information.

Find the domain of f(x)=x-3/7x.
All real numbers except -3
All real numbers except 0
All real numbers except 7
All real numbers except 3

Answers

Using the graphical methods [online graph calculator], the domain of (fx) = (x-3)/7x is given as All real numbers except 0. (Option B)

What is a domain in mathematics?

A relation's domain and range are defined as the sets of all the x-coordinates and all the y-coordinates of ordered pairs, respectively.

Graphs may also be used to determine the domain and range of functions. The domain of a graph consists of all the input values represented on the x-axis since the domain refers to the set of potential input values. The range is the collection of potential output values represented on the y-axis.

Notice as indicated in the graph that the coordinates or ordered pairs plotted DO NOT go through the origin which is zero. Also notice that the curved lines, extend to all real numbers on the grapy to infinity.

Hence stated as a mathematical expression, the domain would be:

(-∞, 0) ∪ (0,∞)

{x|x≠0}

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Which of the following is NOT a requirement for a density​ curve?

Answers

The option that is NOT a requirement for a density​ curve is option

A. The graph is centered around 0.

What is a Density Curve?

A graph that displays probability is known as a density curve. All probability are represented by 100% of the curve's area under the curve.

Note that you can alternatively state that the area is equal to 1 because 100% is a decimal, which is how we typically express probabilities. Those are some characteristics of a density curve. One particular category of density curves is the normal density curve. They are bell-shaped, symmetric, and unimodal.

Therefore, To view the distribution of a variable in a dataset, utilize density graphs. The graph is plotted across a continuous range of time. Another name for this is a kernel density plot. Histograms are modified into density charts. An idealized representation of a distribution is a density curve, and there is no centered graph at point zero.

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Which of the following is NOT a requirement for a density​ curve?

Choose the correct answer below.

A.

The graph is centered around 0.

B.

The curve cannot fall below the horizontal axis.

C.

The total area under the curve must equal 1.

D.

Every point on the curve must have a vertical height that is 0 or greater.

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