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Which variables is/are included in the best set of the model using forward selection? a. x1 b. x2 c. x3

Which variables is/are included in the best set of the model using forward selection? a. x1 b. x2 c. x3

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.1: Equations
Problem 77E
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30. Which variables is/are included in the best set of the model using forward selection?

a. x1

b. x2

c. x3

d. none

Forward Selection of Terms Candidate terms: x1, x2, x3 Constant x3 x1 x2 S R-sq R-sq(adj) Mallows' Cp a to enter = 0.25 -----Step 1---- Coef -23.62 21.514 P 0.000 3.94030 99.09% 99.04% 7.08 -----Step 2---. Coef 66.1 20.121 -5.36 P 0.000 0.103 3.74177 99.23% 99.13% 5.66 ----Step 3---- Coef 47.2 18.24 -9.74 0.428 P 0.000 0.018 0.074 3.47963 99.37% 99.25% 4.00
Transcribed Image Text:Forward Selection of Terms Candidate terms: x1, x2, x3 Constant x3 x1 x2 S R-sq R-sq(adj) Mallows' Cp a to enter = 0.25 -----Step 1---- Coef -23.62 21.514 P 0.000 3.94030 99.09% 99.04% 7.08 -----Step 2---. Coef 66.1 20.121 -5.36 P 0.000 0.103 3.74177 99.23% 99.13% 5.66 ----Step 3---- Coef 47.2 18.24 -9.74 0.428 P 0.000 0.018 0.074 3.47963 99.37% 99.25% 4.00
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