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:
5
Step-by-step explanation:
since 30-60-90 triangles are special right triangles, we know that if the short leg=x, the long leg= xsqrt(3). so the short leg= 5 sqrt(3) /(sqrt(3) = 5
subtract 3 from both sides:
![\dfrac{1}{2}(3-x)](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B2%7D%283-x%29%3C-10)
Multiply both sides by 2:
![3-x](https://tex.z-dn.net/?f=3-x%3C-20)
Subtract 3 from both sides:
![-x](https://tex.z-dn.net/?f=-x%3C-23)
Change sign to both sides (this implies that you should also change the inequality sign):
![x>23](https://tex.z-dn.net/?f=x%3E23)
Answer:
90
Step-by-step explanation:
720 divide by 8
then times it by 1