CSUGC Programming Linear Regression Modeling Questions – Question Description
I’m working on a programming multi-part question and need the explanation and answer to help me learn.
Load the R package MASS, and its Cars93 data set, using the R command:
library(MASS)
and answer the following questions using R code:
How many rows does the Cars93 data set has?
What are the names of the variables in the Cars93 data set?
What are the summary statistics of the variables EngineSize and MPG.city?
Subset the Cars93 data set into a smaller data set that excludes vehicles with EngineSize less than the median of EngineSize and excludes all variables except the EngineSize and MPG.city variables.
How many rows in the smaller data set?
What are the names of the variables in the smaller data set?
What are the summary statistics of the variables EngineSize and MPG.city in the smaller data set?
Display a scatter plot of the relationship between the two variables of EngineSize and MPG.city.
Explain your work, along with your screenshot
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