Advanced Placement (AP) College

from 8.05 APStat:
Offering career academies in high schools has become more popular during the past 30 years because they help students prepare for work and postsecondary education. A principal at a large high school with a Science, Technology, Engineering, and Mathematics (STEM) Academy is interested in determining whether the status of a student is associated with level of participation in advanced placement (AP) courses. Student status is categorized as (1) STEM for students in the STEM program or (2) regular. A simple random sample of 200 students in the high school was taken and each student was asked two questions:
Are you in the STEM Academy?
In how many AP courses are you currently enrolled?
The responses of the 200 students are summarized in the table.

Part A: Calculate the proportion of STEM students who participate in at least one AP course and the proportion of regular students in the sample who participate in at least one AP course.
Part B: Is participating in two or more AP courses independent of student status?
Part C: Describe a method that could have been used to select a simple random sample of 200 students from the high school.
Part D: Is there any reason to believe there is bias in the method that you selected? Why or why not?
Part E: The responses of the 200 students are summarized in the segment bar graph shown.


Compare the distributions and what the graphs reveal about the association between level of participation in AP courses and student status among the 200 students in the sample. (5 points)
Part F: Do these data support the conjecture that student status is related to level of participation in AP courses? Give appropriate statistical evidence to support your conclusion. (10 points)

Answers

Answer 1

STEM students who participate in at least one AP course account for 85% or 0.85 out of the total number of STEM students. As for regular students, the proportion of their participation is 70% or 0.70 based on our sample.

How to explain the sample

It should be noted that to select a sample from the high school, every student was assigned a unique identifier number which ranged between 1 and the total count of students in the establishment. A random number generator produced 200 numbers, and we selected the students with corresponding numbers as our sample.

The segment bar graph shows the distribution of students in each category of AP enrollment (0, 1, 2, or 3) for both STEM and regular students. The height of each segment represents the proportion of those who fall into that specific category.

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Answer 2
Part A:
Let S be the event that a student is in the STEM Academy and let R be the event that a student is regular. The proportion of STEM students who participate in at least one AP course is (50 + 45)/120 = 0.79. The proportion of regular students who participate in at least one AP course is (35 + 20)/80 = 0.69.

Part B:
To determine whether participating in two or more AP courses is independent of student status, we need to compare the conditional probabilities of this event given each student status. If P(AP ≥ 2 | S) = 0.4 and P(AP ≥ 2 | R) = 0.25, then the events are not independent.

Part C:
A simple random sample of 200 students from the high school could have been selected by numbering each student in the high school and using a random number generator to select 200 numbers.

Part D:
There may be bias in the method of selecting a simple random sample if the numbers were not truly random or if some students were not included in the numbering system. However, if the numbers were truly random and all students were included in the numbering system, then the sample would be unbiased.

Part E:
The segment bar graph shows that a higher proportion of STEM students participate in at least one AP course compared to regular students. Additionally, a higher proportion of STEM students participate in two or more AP courses compared to regular students. These results suggest that there is a positive association between student status and level of participation in AP courses.

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Answers

The time it takes for water to solidify depends on a assortment of components, such as temperature, saltiness, and the estimate of the body of water.

What is the predictions about?

In the text above, it would take longer for a huge body of water like an sea to solidify than a littler body of water like a lake or lake. This is often because the huge volume of water within the sea would take longer to cool down and reach the solidifying point, compared to a small body of water.

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A region is bounded by the curves y = sinπ x , y = 4 x − 1 , and the x-axis. Determine the area of the region. Use the area formula for a triangle to expedite the calculation and show all your work.

Answers



First, we need to find the x-coordinates of the intersection points of the curves:

sinπx = 4x - 1
πx = arcsin(4x - 1)
x = arcsin(4x - 1)/π

The two curves intersect at two points, one of which is at x=0, the other one can be found numerically (e.g. using a graphing calculator) to be at approximately x=0.72.

Therefore, the area of the region can be found by dividing it into two triangles and one curved region:

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where A1 is the area of the triangle bounded by the x-axis and the vertical lines x=0 and x=0.72, A2 is the area of the triangle bounded by the x-axis and the vertical lines x=0.72 and x=1, and A3 is the area of the curved region between the two vertical lines.

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Therefore, the total area of the region is:

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Responses
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Answers

The member of the Texas Executive Branch is the Governor. Therefore the correct answer is (D).

What is Executive Branch

In politics, the Executive Branch is one of the three branches of government in a democratic system, along with the Legislative Branch and the Judicial Branch.

The Executive Branch is responsible for enforcing and administering the laws of the country or state, depending on the level of government.

The head of the Executive Branch is the Chief Executive or Head of State, who is usually called the President (at the federal level) or Governor (at the state level). The President or Governor is elected by the people and serves as the highest-ranking officer of the Executive Branch.

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What responsibilities do you think you might have if you think a law or action by government is unjust? Why?

Answers

Answer: A lawsuit and a plead to a court or even the Supreme Court.

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Question 10 of 25
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Answers

D. Unusually warm waters in the eastern Pacific Ocean cause higher-than-average rainfall in the southeastern United States during an El Niño event.

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Matthew D.'s academic paper titled "Implications of Climate Change on Agriculture: An Overview and Review for the US Department of Defense" outlines the impact of climate change on farming. Rewording: Michael J. Durnin. Behm and Karen M. are the authors of the text.

What is the characteristics  about?

The work of Watkins made an appearance in the 2017 issue of the Environmental Science & Policy journal. This article thoroughly examines the influence of climate change on agriculture, and discusses its potential implications for national security.

Stephanie Eckelkamp's widely read article titled "Climate Change: Impact on Agriculture" was posted on the Prevention website in 2018. The piece provides a concise summary of the consequences that arise due to climate change in regards to agriculture and the potential implications it may have on the production of food.

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Can you help with this psychology question? What is 34 and 35?

Answers

You're correct with both, you shouldn't doubt yourself! Happy to help though, and have a great day! :)

(also freud is weird please tell me i'm not the only one who thinks this)

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Answers

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Explanation:

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Answers

The research question that is too broad is: "What plans grow best in my region?"

How do you select a research qustion that is not too broad?

The above is too broad because, it involves researching a lot of plants and you don't want to do that.

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