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
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Regression Model: brainly.com/question/10209928
Keyword : regression, model, best fit, data set
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<span>
<span>There
was a lot of tension between Great Britain and China due to the opium
trade of British merchants and the Chinese of the Qing dynasty. Since
the British needed Chinese goods but did not have enough silver for
trading, they decided to exchange Chinese goods for opium instead.
Because of the opium trade, there were many Chinese who became
addicted to the substance. This lead to a high number of unstable
individuals in China. This lead to the Chinese revolting against the
British merchants. This, in turn, lead to the opium war. </span>
</span>
John Dickinson was the Pennsylvania delegate that refused to sign the Declaration of Independence. Dickinson was not the only one to refuse to sign, as James Duane, Robert Livingston, and John Jay also refused to sign. These individuals felt that 1776 was not the right to break away from Britain and worried about the future of the 13 colonies without the help of Britain.
C
ignore
Too short of an answer /20chars
The Aztecs lived in Mexico. That's where their empire was.
