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2 years ago

Select the two recommendations that would decrease the margin of error of the interval.

1 answer:

8 0

From the options given, the only option which would result on having a reduced error margin, is to increase the sample size.

<u>Recall</u><u> </u><u>:</u><u> </u>

<em>Margin of Error</em> = Zcritical × σ/√n

Increasing the mean would have no impact on the margin of error as it is not a part of the factors which affects the margin of error value.

Increasing the standard deviation, which is the Numerator will result in an increased margin of error value.

By raising the confidence level, the critical value of Z will increase, hence widening the margin of error.

The sample size, n being the denominator, would reduce the value of error margin.

Hence, only the sample size will cause a decrease in the margin of error of the interval.

Learn more : brainly.com/question/25569754

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Look at the drawing and answer the following questions with the most logical affirmative or negative expressions as indicated. R

Anastasy [175]

Answer:

Sí, hay alguien pescando.

No, no veo ninguna parrillada.

No, no hay nadie que bucea.

No, no se ve ninguna ola en el lago.

No, hay alguien que toma el sol.

Sí, veo alguna canoa en el lago.

Explanation:

Use the verbs that the voices use.

7 0

2 years ago

William julius wilson believes the cause of the emergence of an urban underclass is.

lapo4ka [179]

William Julius Wilson is known to be a popular man in history. William Julius Wilson believes the cause of the emergence of an urban underclass is economic and social structural deficits in society.

William Julius Wilson was known to be born December 20, 1935. He was a famous American sociologist. He stated the importance of neighborhood effects and also showed how small employment opportunities and weakened institutional resources influenced poverty within American inner-city neighborhoods.

The underclass is known to be a collection of identifying traits, such as high rate of joblessness, single parents births etc.

See full question below

William Julius Wilson believes the cause of the emergence of an urban underclass is

a. the "culture of poverty."

b. prejudice and racism.

c. economic and social structural deficits in society.

d. too much immigration from some areas.

6 0

2 years ago

Point (20, 5) is on the graph of inverse variation. Which of the following ordered pair is on the graph?.

Bess [88]

The point $(10, 10)$ is on the graph.

<h3>Procedure - Inverse variation</h3><h3 /><h3>Inverse variation model</h3><h3 />

An <em>inverse</em> variation is represented by the following formula:

$y = \frac{k}{x}$ (1)

Where:

$x$ - Independent variable.
$y$ - Dependent variable.
$k$ - Proportionality constant.

We can eliminate the proportionality constant by creating the following relationship:

$x_{1}\cdot y_{1} = x_{2}\cdot y_{2}$ (2)

<h3>Determination of another point</h3>

If we know that $x_{1} = 20$ , $y_{1} = 5$ and $x_{2} = 10$ , then the remaining variable is:

$y_{2} = \left(\frac{x_{1}}{x_{2}} \right)\cdot y_{1}$

$y_{2} = \left(\frac{20}{10} \right)\cdot (5)$

$y_{2} = 10$

The point $(10, 10)$ is on the graph. (Correct choice: C) $\blacksquare$

To learn more on inverse variations, we kindly invite to check this verified question: brainly.com/question/4838941

<h3>Remark</h3>

The statement is incomplete. Complete form is described below:

<em>Point </em> $(20, 5)$ <em> is on the graph of an inverse variation. Which of the following ordered pair is on the graph? </em><em>A.</em><em> </em> $(4,1)$ <em>, </em><em>B.</em><em> </em> $(2, 25)$ <em>, </em><em>C.</em><em> </em> $(10, 10)$ <em>, </em><em>D.</em><em> </em> $(16, 4)$ <em>.</em>

7 0

2 years ago

If 2x – 3y = 4, what is the value of ?<br> 4x/8y

lord [1]

ax ^{2} +5x+2=0