Exercise

# Multivariate regression in R

Regression analysis also lets you trace the relationship between a y variable and **more than one** x variable. In this lesson, you will see if you can learn anything extra about the election by using county-level income data.

Instructions

**100 XP**

- Building on the linear model you made in the previous exercise, add the
`per_capita_income`

variable to the`lm()`

model call - Inspect the model output with
`summary()`

.