Answered: 2 2 - F40) x y 23 ; 88 76 ;…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

2 -

F40)

x y

23 ; 88

76 ; 300

27 ; 105

64 ; 240

15 ; 60

51 ; 205

33 ; 120

29 ; 110

When regression analysis is performed according to the given x and y values, what is the y value to be obtained for x =45 in the calculated equation (y = ax + b)

150,997

B)	hiçbiri/none of them

135,579

162,24

174,062

Expert Solution

Step 1

Introduction -

Formula for linear regression equation is given by

y=a+bx

$a = \frac{\sum_{} y \underset{}{\sum x^{2} -} \underset{}{\sum x} \underset{}{\sum x y}}{\underset{}{n \sum} \underset{}{x^{2} - \underset{}{(\sum} x)^{2}}} b = \frac{n \sum_{} x y - \sum_{} \underset{}{x \sum y}}{n \sum_{} \underset{}{x^{2} - {(\sum x)}^{2}}} w h e r e, b = s l o p e o f t h e l i n e x a n d y a r e t w o v a r i a b l e o n t h e r e g r e s s i o n l i n e a = y - i n t e r c e p t x = v a l u e s o f t h e f i r s t d a t a s e t y = v a l u e s o f t h e s e c o n d d a t a s e t$