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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There were many reasons for Hitler to not attack
Switzerland, as the country did not have any natural resources which could have
attracted Hitler. Another simple reason is that Hitler never felt the need to
invade Switzerland as the whole point of attack could be to utilize the train
lines, supply lines and other facilities to ease up the transportation of
German army with which Switzerland never messed even during the war, German
armies were passing through Switzerland freely, the famous stories are common about
sealed rail cars passing through Italy to Germany. Switzerland played an almost
neutral role during war which could also be a reason for their safe grounds.
Though
Hitler had a plan to attack Switzerland called “Operation Tannenbaum”, which
was cancelled later.
Answer: that's if people don't be dead by that year.
Explanation:
Answer:
"hola"
Next time you answer someone's question actually answer it and dont
just respond for free points its rude
Explanation:
As Communism<span> in the Soviet Union and </span>Eastern Europe <span>began to collapse due to the revolutions taking place, pressure mounted on the </span>East<span> German authorities to open the Berlin border to the west. Thousands of Germans were escaping to the west through Hungary and the GDR was powerless to stop them.</span>
