The CSV file modeldata.csv contains 200 observations of 4 explanatory variables (x1, x2, x3, x4) and a response variable (y). A multiple linear regression model is built in R using the following code, > modeldata <- read.csv("modeldata.csv") > x1 <- modeldata$x1 > x2 <- modeldata$x2 > x3 <- modeldata$x3 > x4 <- modeldata$x4 > y <- modeldata$y > model <- lm(y~x1+x2+x3+x4)   Question: What this particular plot shows about the model being analysed?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.3: Quadratic Equations
Problem 51E
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The CSV file modeldata.csv contains 200 observations of 4 explanatory variables (x1, x2, x3, x4) and a response variable (y). A multiple linear regression model is built in R using the following code,

> modeldata <- read.csv("modeldata.csv") > x1 <- modeldata$x1 > x2 <- modeldata$x2 > x3 <- modeldata$x3 > x4 <- modeldata$x4 > y <- modeldata$y > model <- lm(y~x1+x2+x3+x4)
 
Question: What this particular plot shows about the model being analysed?
d_i
1 2 3
Τ
-3 -2
0
ග
до
Standardised residuals v Fitted y
0808
ос
00
0
800
0
8
80°
00
00
00
0
00
00
00 0
20
40
60
80
100
120
140
fitted
о
Transcribed Image Text:d_i 1 2 3 Τ -3 -2 0 ග до Standardised residuals v Fitted y 0808 ос 00 0 800 0 8 80° 00 00 00 0 00 00 00 0 20 40 60 80 100 120 140 fitted о
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