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Natalija [7]
2 years ago
8

Age Distribution of the Population by Sex and Region (2011)

Mathematics
1 answer:
Elden [556K]2 years ago
6 0

The consideration of the Age Distribution of the Population of the United States South Region shows that:

<h3>South Region:</h3>

Section: 1: Child Dependency Ratio: =31.4160%

Section: 2: Old-age Dependency Ratio: 18.9205%

Section: 3: Age Dependency Ratio: 50.3364%

Section: 4: Interpret: About 31% of the children and 19% of old people of the South region depend on their working adults.

Section: 5: Extend: This implies that more than 50% of children and old people in the United States depend on 50% of the working population for survival.

<h3>Data and Calculations:</h3>

Age                            Total   # Northeast   # Midwest   # South      # West

Both sexes             306,108      54,782         66,104      113,274        71,946

Under 15 years        62,155       10,034          13,180       23,671        15,269

15 to 64 years       204,775        37,101        44,209       75,347         48,117

65 years and older 39,178         7,647           8,715        14,256         8,560

<h3>South Region:</h3>

Section: 1: Child Dependency Ratio: =31.4160% (23,671/75,347 x 100)

Section: 2: Old-age Dependency Ratio: 18.9205% (14,256/75,347 x 100)

Section: 3: Age Dependency Ratio: 50.3364% (37,927/75,347 x 100)

Section: 4: Interpret: About 31% of the children and 19% of old people of the South region depend on their working adults.

Section: 5: Extend: This implies that more than 50% of children and old people depend on the working population.

Thus, the records show that a little over 50% of the population depends on less than 50% population for survival.

Learn more about Age Distribution of Population at brainly.com/question/3581713

#SPJ1

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Oduvanchick [21]
Answer=21.4%

  75      x
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 350   100

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x=<span>21.4285714286
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PLEASE HELP IM STUCK
mrs_skeptik [129]

The number of outcomes possible from flipping each coin is 2, therefore;

  • The expression that can be used to find the number of outcomes for flipping 4 coins is: 2•2•2•2

<h3>How can the expression for the number of combinations be found?</h3>

The possible outcome of flipping 4 coins is given by the sum of the possible combinations of outcomes as follows;

The number of possible outcome from flipping the first coin = 2 (heads or tails)

The outcomes from flipping the second coin = 2

The outcome from flipping the third coin = 2

The outcome from flipping the fourth coin = 2

The combined outcome is therefore;

Outcome from flipping the 4 coins = 2 × 2 × 2 × 2

The correct option is therefore;

  • 2•2•2•2

Learn more about finding the number of combinations of items here:

brainly.com/question/4658834

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7 0
2 years ago
Evaluating expressions
Dvinal [7]

Answer:

There is no expression to evaluate.

Step-by-step explanation:

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Learning how to walk can be a difficult task for babies.if a baby can walk 1 1/2 miles in an hour,how far will it be able to tra
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3 years ago
Please Help! Multiple Choice!
Katyanochek1 [597]

Using the z-distribution, the p-value would be given as follows:

b) 0.0086.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis we test if the means are equal, hence:

H_0: \mu_D - \mu_C = 0

At the alternative hypothesis, it is tested if they are different, hence:

H_1: \mu_D - \mu_C \neq 0

<h3>What are the mean and the standard error for the distribution of differences?</h3>

For each sample, they are given as follows:

  • \mu_D = 12, s_D = \frac{5.2}{\sqrt{73}} = 0.6086
  • \mu_C = 14, s_C = \frac{4.1}{\sqrt{81}} = 0.4556

Hence, for the distribution of differences, they are given by:

  • \overline{x} = 12 - 14 = -2.
  • s = \sqrt{0.6086^2 + 0.4556^2} = 0.76

<h3>What is the test statistic?</h3>

The test statistic is given by:

z = \frac{\overline{x} - \mu}{s}

In which \mu = 0 is the value tested at the null hypothesis.

Hence:

z = \frac{\overline{x} - \mu}{s}

z = \frac{-2 - 0}{0.76}

z = -2.63.

Using a z-distribution calculator, for a two-tailed test, with z = -2.63, the p-value is of 0.0086.

Hence option B is correct.

More can be learned about the z-distribution at brainly.com/question/13873630

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4 0
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