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solniwko [45]
3 years ago
12

Country A is a more developed country with a low birth rate, a low total fertility rate, a high life expectancy, and a high perc

entage of urban population. Based on this information, which of the following outcomes is most likely to occur in Country A?
a. Guest workers from less developed countries are needed to fill the labor shortages in urban areas.

b. Falling birth rates and declining youth populations result in an increase in school
construction in urban areas.

c. Pressures on pension and social security programs are at critical levels as the number of elderly increases.

d. Provincial and national politicians must tailor their political campaigns to appeal to rural voters

e Suburban house construction declines as elderly populations downsize and seek to be closer to urban amenities.
Advanced Placement (AP)
1 answer:
lys-0071 [83]3 years ago
3 0
I would say c is the correct answer as if there is a low birth rate, when the population ages you are going to have lots of people retiring and not as many people working and paying taxes so pressures on pensions and social security programs will rise. Hope this helps :)
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Over the past few decades, the average intelligence scores have increased. This phenomena best illustrates why intelligence test
zysi [14]

Answer:

A.

Explanation:

This phenomenon best illustrates why intelligence tests need to be revised for predictive validity. The tests are taken initially and show high scores, then they are taken again and show even higher scores. This shows that the individuals are getting smarter. If the test continues to be taken without revision then the same results will continue since the individuals will continue to become smarter but the test will continue being the same. Therefore, becoming much easier for the participants every time. This ultimately leads to better and better scores.

6 0
3 years ago
If the wait time is less than 30 minutes for 75% of all patients in the emergency room, what is the probability that the
Greeley [361]

The probability that the proportion of patients who wait less than 30 minutes is 0.582 or less is 0.0020

<h3>What is probability? </h3>

Probability can be defined as the likelihood of an event to occur. In statistics, the mean of the sample distribution typically shows the probability of the population.

From the parameters given:

  • The sample size (n) = 55 patients
  • Let's assume that the mean (x) = 32 (i.e. 58.2%) of the patients

The sample proportion \mathbf{\hat p} can be computed by using the expression:

\mathbf{\hat p = \dfrac{x}{n}}

\mathbf{\hat p = \dfrac{32}{55}}

\mathbf{\hat p =0.582}

If the percentage of the probability of all patients in the emergency room = 0.75

The probability that the proportion of patients who wait less than 30 minutes is 0.582 or less can be computed as:

\mathbf{( \hat P \leq 0.582) = P \Big( \dfrac{\hat p - p}{\sqrt{\dfrac{p(1-p)}{n}}} \leq \dfrac{0.582 - 0.75}{\sqrt{\dfrac{0.75(1-0.75)}{55}}} \Big )}

\mathbf{( \hat P \leq 0.582 )= P \Big( Z \leq \dfrac{-0.168}{\sqrt{0.003409}} \Big )}

\mathbf{( \hat P \leq 0.582) = P \Big( Z \leq -2.88 \Big )}

From the Z distribution table:

\mathbf{( \hat P \leq 0.582) = 0.00198}

\mathbf{( \hat P \leq 0.582) \simeq 0.0020}

Learn more about probability here:

brainly.com/question/24756209

5 0
3 years ago
Read 2 more answers
The following table shows the number of hours some high school students in two towns spend riding the bus each week:
sergeinik [125]

Answer: Part A. The IQR for town A is 4.5 and the IQR for town B is 4.5

Part B. No, they are assymetric.

Explanation: To find the interquatile range (IQR) of each set of data, you can do as follows:

1) Put the number in each set of data in order:

A: 3 4 5 5 6 7 8 9 9 20

B: 3 3 5 5 6 8 8 9 9

2) Find the median of each town data:

For A, the median is the number 6. Coincidently, the same can be said for town B: its median is 6.

3) Find Q1, which is the median (or the middle term) of the left side of the median:

A: 3 4 5 5 (set of numbers to calculate)

B: 3 3 5 5

Now, as both set of number are even, to find the median, we have to calculate the mean of the two central numbers:

For A: Q1 = \frac{4+5}{2} = 4.5

For B: Q1 = \frac{3+5}{2} = 4

4) Find Q3, which is the median of the right side of the first median:

A: 7 9 9 20 (set of numbers to calculate)

B: 8 8 9 9

As before, the median will be the mean:

For A: Q3 = \frac{9+9}{2} = 9

For B: Q3 = \frac{8+9}{2} = 8.5

5) The IQR is the result of a subtraction:

IQR = Q3 - Q1

For A: IQR = 4.5

For B: IQR = 4.5

For the two sets of data the IQR is the same and equals 4.5.

Part B: Box plot is a type of graphic, similar to histogram. To plot it, you need 5 points but for this question, it will be analised just the symmetric aspect. As the graphic is a retangule, to be symmetric, the median or mean has to be in the center of the retangule. In the case of the towns, the box plots are assymetric because the median of each town is closer to the Q1 of each town. In other words, the retangule is not "divided" exactly in half.

4 0
3 years ago
Please help asap very important
Rufina [12.5K]

Answer:

read below

Explanation:

The answers are close so, #1 would not make much sense. Coasts are exactly where land and water meet so... #2 I guess that would also make sense since water deposits sediments and it's where land meets water. #3, um, coasts won't be exactly flat if sediments from water are brought and it's where water and land meet, so it can't be #3. It won't be #4 since the coasts are not very steep.

I would say #2 because sediments from the shelf are what keep the coast complete. You could say #3 but i honestly don't know what else to say.

7 0
3 years ago
Help plss 100pnts will give brainliest to first answer
defon

Explanation:

makasabot ka ana Kung dili ayaw nalang ha Ang kuan ra baya na ako giansweran

3 0
2 years ago
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