Based on the regression line, and the data points, the sum of squared residuals is 22.
<h3>What is the sum of squared residuals?</h3>
The squared residual can be found as:
= (y - 3 + 2x)²
For point (4 , 8)
= (8 - 3 - 2(4))²
= 9
For point (2 , 5)
= (5 - 3 - 2(2))²
= 4
For point (1, 2)
= (2 - 3 - 2(1))²
= 9
The sum of squared residuals is:
= 9 + 4 + 9
= 22
Full question is:
The regression line = 3 + 2x has been fitted to the data points (4,8), (2,5), and (1,2). The residual sum of squares will be:
Find out more on squared residuals at brainly.com/question/28234214.
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Answer:
1. shown below
2.
Step-by-step explanation:
We say exists if the limit remains the same along every path.
Here, f is a function on two variables defined on a disk that contains the point (a,b).
1.
Along y-axis i.e., x = 0:
Along x-axis i.e., y = 0:
As the limit is not the same along different paths, so limit does not exist.
2.
Along the path x = y:
Square has 4 equal sides so it would be the same for all the corresponding sides.
area of square =
=
=
area of triangle =
=
=
=
total area =
5 + 2x ≤ 30
2x ≤ 25
x ≤ 12.5
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Answer:190
Step-by-step explanation:
area of triangles is 5*3=15
15+15=30
rectangles are (5*10)*2+(6*10)=160
160+30=190