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4 years ago

Identify the following data set:

Mathematics

1 answer:

pentagon [3]4 years ago

7 0

<em>*100% CORRECT ANSWERS </em>

Question 1

Identify the following data set:

...In a study about all of the runners in the Peachtree Road Race last year, the first 10 and the last 50 runners to finish were asked what type of shoe they preferred for the race.

Sample

Question 2

Identify the following NUMERICAL values:

...the average number of years of experience a teacher has at GCA out of ALL the teachers at GCA.

Parameter

Question 3

Which type of sampling method is being employed in the following example:

"A study is being conducted at a ride at six flags, where every 5th person is asked how long had to wait in line."

Systematic Sampling

Question 4

Which type of sampling method is being employed in the following example:

"A newspaper reporter wants to know what the people of Georgia think about the latest trades the Braves baseball team have made for an article but is running late. So, the reporter decides to just ask people at the news office what they think to provide a sample of the public's opinion in the article."

Sampling of Convenience

Question 5

Which type of study best describes the following research most likely to be done?

The bureau of Labor Statistics needs to determine the average hourly wage of teenage employees for the U.S.government.

Sampling

Question 6

Which type of study best describes the following research most likely to be done?

A researcher believes that headaches can be relived by drinking water flavored by mint leaves. So the researcher asks a group at the hospital to participate in a study in which the researcher gives half of the participants in the study just plain water and half the water flavored by mint leaves to compare the two groups.

Experimental

Question 7

A researcher believes that working out in colder temperatures will burn more calories because a person has to burn more calories to keep warm. The researcher decides to study various groups of people working out at different temperatures and measure their progress.

How would you describe the temperature in the study?

Independent Variable

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The table below shows some inputs and outputs of the invertible function f with domain all real numbers.

Naddik [55]

by the inverse function definition, we will have that:

f⁻¹(-2) = 3
f⁻¹(1) = 0

<h3>How to find the values of the inverse function?</h3>

Remember that, by definition, for an invertible function f(x) we have that:

f(x) = y

then:

f⁻¹(y) = x

Where f⁻¹(x) is the inverse function of f(x).

Now, we want to find:

f⁻¹(-2) and f⁻¹(1)

If you look at the given table, we can see that we have the points (3, -2) and (0, 1), which means that:

f(3)= -2

f(0) = 1

Then, by the inverse function definition, we will have that:

f⁻¹(-2) = 3
f⁻¹(1) = 0

If you want to learn more about inverse functions:

brainly.com/question/14391067

#SPJ1

3 0

2 years ago

Someone please help me i don’t understand

frutty [35]

Answer:

Answer B

Step-by-step explanation:

Write out f(x) and g(x) in a column; we will subtract g(x) from f(x):

f(x) = x^2 - 9 or f(x) = x^2 - 9

-g(x) = -(2 - x) or -g(x) = +x -2

---------------------------------

f(x) - g(x) = x^2 + x - 11 (Answer B)

6 0

3 years ago

The degree of a vertex is <br><br> Help please

Nina [5.8K]

Answer:

is the number of graph edges which touch v

Step-by-step explanation:

To find the degree of a graph, figure out all of the vertex degrees. The degree of the graph will be its largest vertex degree. The degree of the network is 5.

Once you know the degree of the verticies we can tell if the graph is a traversable by lookin at odd and even vertecies. First lets look how you tell if a vertex is even or odd.

7 0

3 years ago

Find the dimensions of the open rectangular box of maximum volume that can be made from a sheet of cardboard 13 in. by 8 in.

ivanzaharov [21]

1) To make a rectangular box you need to cut squares from the four corners of the rectangular sheet.

2) Call x the length of the sides of the squares cut off.

3) The base of the box will have dimensions: (13 - 2x) and (8 - 2x)

4) The height of the box will be x

5) The volume of the box will be the area of the base times the height:

Volume = (13 - 2x)(8 -2x)x = (4x^2 - 42x + 104)x = 4x^3 - 42x^2 + 104x

6) The maximum volume is calculated by finding the point where the derivative of the volume is zero =>

d (volume) / dx = 12x^2 - 84x + 104 = 0

7) Solve the quadratic equation 12x^2 - 84x + 104 = 0

=> 4(3x^2 - 21x + 26) = 0

=> 3x^2 - 21x + 26 = 0

=> 3 (x^2 - 7x) + 26 = 0

=> 3 [(x - 7/2)^2 - (7/2)^2] + 26 = 0

=> 3 (x - 7/2)^2 - 3* 49/4 + 26 = 0

=> 3 (x - 7/2)^2 = 3*49/4 - 26

=> (x -7/2)^2 = (49/4 - 26/3)

=> x = 7/2 +/- √(49/4 - 26/3)

x = 7/2 + √3.583 and x = 7/2 - √3.583

x = 5.393 and x = 1.607

=> Volume =

1) 4(5.393)^3 - 42(5.393)^2 + 104(5.393) = -33.26 ---> it does not have physical meaning

2) 4(1.607)^3 - 42(1.607)^2 + 104(1.607) = 75.27 ---> this is the answer

Answer: 75.27 in^3

4 0

4 years ago

TWENTY PTS!!!

Elan Coil [88]

Answer:

d + 7 > (7d + 3)/3

3d + 21 > 7d + 3

18 > 4d

d < 18/4

d < 9/2

d < 4.5

36 - 2n < 1/3 * n + 15

36 - 15 < 2 1/3 * n

21 < 7/3 * n

21 * 3/7 < n

9 < n

n > 9

7 0

4 years ago