alleryStart learning →In simple linear regression, how many independent variables are used?
ANone at all
BJust one
CJust two
DJust three
Answer & Solution
Correct answer: B. Just one
1. Regression can be extended to many predictors, but the simplest case is deliberately minimal.
2. The simplest form of regression is linear regression with one independent variable x.
3. That single x is used to predict the dependent variable y.
4. Adding further predictors turns it into multiple regression instead.
_Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 12 'Linear Regression and Correlation', sections 12.1-12.6_
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