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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Answer:Written Language, Theater, Painting, and Mongol Rituals
Explanation:
The Assembly line
correct me if i’m wrong
The intimate letters of Eleanor Roosevelt and Hickok strengthened their friendship.
<h3>Who was Eleanor Roosevelt?</h3>
It should be noted that Eleanor Roosevelt was first lady of the United States from 1933 to 1945 when Franklin Roosevelt was in office.
Lorena Hickok was a journalist whom was debited to her mentor and friend Roosevelt.
During the administration, she championed access to education, poverty alleviation, and civil rights.
The documents titled empty without you illustrated the influential and intelligent women who loved each other, their country, and had a rare passion.
In conclusion, the correct option is true.
<u>Complete question:</u>
Letters to Eleanor strengthened her bond with Lorena Hickok. True or false?
Learn more about Roosevelt on:
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