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lara [203]
2 years ago
14

What is the process of buying and using goods and services?

History
1 answer:
uysha [10]2 years ago
7 0
The Answer is trade.
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Which regression model best fits the data set? (2;13); (4;8); (5;7.5); (8;12)
Levart [38]

The regression model that best fit the data set is : Y=10.35-0.0467X

Explanation:

The equation of a regression line is given by;

Y=a+bX where b is the slope of the line a is the y-intercept , Y is the dependent variable and X is the independent variable

The slope b is given by;

b = n(∑xy)-(∑x)(∑y) / n(∑x² )-(∑x)²

a=(∑y)(∑x²)-(∑x)(∑xy) /n(∑x²)-(∑x)²

n is the sample size = 4

Form a table as;

x            y               xy             x²              y²

2            13              26            4              169

4             8               32            16            64

5             7.5            37.5          25         56.25

8              12              96           64           144

<u>19             40.5          191.5        109         433.25--------sum</u>

<u></u>

a=(∑y)(∑x²)-(∑x)(∑xy) /n(∑x²)-(∑x)²

a=(40.5)(109) - (19)(191.5) / 4(109) - (19)²

a=(4414.5 - 3638.5) / (436-361)

a=776/75

a=10.35

b = n(∑xy)-(∑x)(∑y) / n(∑x² )-(∑x)²

b=4(191.5)-(19)(40.5) / 4 (109)-19²

b=766-769.5 /436-361

b=-3.5/75

b= - 0.04667

The model will be represented by the equation;

Y=10.35 -0.0466X

Learn More

Regression Model: brainly.com/question/10209928

Keyword : regression, model, best fit, data set

#LearnwithBrainly

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After the firing on Fort Sumter, which states seceded from the Union and joined the Confederate States of America?
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After the firing on Fort Sumter, which states seceded from the Union and joined the Confederate States of America?

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B.  Tennessee, Kentucky, Virginia, and Arkansas

C.  Kentucky, Virginia, North Carolina, and Texas

D.  Arkansas, Tennessee, North Carolina, and Virginia

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How did the four factors of production determine which nations were able to industrialize after Britain?
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In order to determine the answer for this, we much look at the 4 factors of production: land, labor, capital, and entrepreneurship. When it comes to industrialization, those nations that had these four capitals could easily follow suit. These were mostly those countries that were following the capitalist path. Taking America for example, the North was heavily industrialized due to it having plenty land for industries, labor readily available, capital in terms of investments, and people willing to start industries and businesses. Being a capitalist country, the government encouraged new businesses. 
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I need help with my history test!!!
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