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Mars2501 [29]
2 years ago
15

Angelique makes beaded jewelry. The graph below shows the number of beads on varying cord lengths. Jewelry A graph has cord leng

th (inches) on the x-axis and number of beads on the y-axis. A line has a regression equation of y = 2.52 x 1.61. A necklace contains 88 beads. Based on the information above, which is the best estimate for the cord length? 21 inches 26 inches 34 inches 36 inches
SAT
1 answer:
Darina [25.2K]2 years ago
3 0

Answer:

c. 34

Explanation:

I just did the test and got it right

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if the tension in an elastic rodis doubled while the overall length of the rod is held constant, the energy stored in the rod is
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what is happening to people who use computers? they are connected all the time they are not paying attention to letters anymore
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Answer: They are learning a new vocabulary. C

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1 year ago
Which of the indicators on the chart above tell(s) us that Australia and New Zealand are highly developed countries?
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Answer:

Answer: D

GDP per capita is a measure of a country's economic output that accounts for its number of people.

The unemployment rate is defined as the percentage of unemployed workers in the total labor force.

The infant mortality rate is the number of deaths under one year of age.

Given the above information, a country with a higher GDP would have a more stable economy aiding in growth. A lower unemployment rate would show a surplus of jobs indicating, once again, a steady and growing economy. Lastly, a lower infant mortality rate would show access to advanced medicine and a highly trained medical field. All three of these examples are indicators of a highly developed country.

Explanation:

3 0
2 years ago
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To compare the average amount of time that canadians and americans spend commuting, a researcher collects a sample of canadians
yKpoI14uk [10]

The standard error of the difference of sample means is 0.444

From the complete question, we have the following parameters

<u>Canadians</u>

  • Sample size = 50
  • Mean = 4.6
  • Standard deviation = 2.9

<u>Americans</u>

  • Sample size = 60
  • Mean = 5.2
  • Standard deviation = 1.3

The standard error of a sample is the quotient of the standard deviation and the square root of the sample size.

This is represented as:

SE = \frac{\sigma}{\sqrt n}

The standard error of the Canadian sample is:

SE_1 = \frac{2.9}{\sqrt{50}}

So, we have:

SE_1 = 0.41

The standard error of the American sample is:

SE_2 = \frac{1.3}{\sqrt{60}}

So, we have:

SE_2 = 0.17

The standard error of the difference of sample means is then calculated as:

SE= \sqrt{SE_1^2 + SE_2^2}

This gives

SE= \sqrt{0.41^2 + 0.17^2}

SE= \sqrt{0.197}

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SE= 0.444

Hence, the standard error of the difference of sample means is 0.444

Read more about standard errors at:

brainly.com/question/6851971

5 0
2 years ago
William julius wilson believes the cause of the emergence of an urban underclass is.
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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.

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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

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c. economic and social structural deficits in society.

d. too much immigration from some areas.

6 0
2 years ago
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